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Reliable Syrup Teal

#137c82
Notes

Reliable Syrup Teal (#137C82) is a deep cyan with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (183°, 74%, 29%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#137c82
RGB
rgb(19, 124, 130)
HSL
hsl(183, 74%, 29%)
HWB
hwb(183 7% 49%)
OKLCH
oklch(53.5% 0.087 201.1)
P3
color(display-p3 0.2242 0.4790 0.5042)
HSV
hsv(183, 85%, 51%)
LAB
lab(47.19% -25.04 -11.24)
LCH
lch(47.19% 27.45 204.17)
CMYK
cmyk(85%, 5%, 0%, 49%)

Etymology

Reliable
adjective

Latin re-ligāre, to bind back — adjectival suffix -able. As a color modifier, reliable implies a clear-and-trustworthy-and-consistent quality where the hue carries the visual register of dependable-and-consistent design-element. Sits at the crisp-and-honest end of the grid, parallel to dependable and trustworthy in usage.

Syrup
modifier

Arabic sharāb, thick-sweet-drink. As a color modifier, syrup implies a thick-and-amber-and-pourable-sweet quality, the visual register of Vermont-maple-and-Levantine-rose-syrup hand-thick-and-amber-and-pourable-sweet Vermont-maple-and-Levantine-rose-syrup-and-French-grenadine syrup-and-thick-and-amber surfaces under Vermont-maple-and-Levantine-rose-syrup-and-French-grenadine Vermont-sugar-shack-and-Damascus-souk amber-pourable-light. Sits at the modifier-and-flavor end of the grid, parallel to malt and zest in usage.

Teal
noun

Anas crecca, the small dabbling duck whose male in breeding plumage sports a chestnut head crossed by a glossy green-blue stripe. The color refers to that stripe — the iridescent panel just behind the eye: a saturated, slightly muted blue-green with the optical depth of structural color rather than pigment. Cooler than cypress, warmer than cerulean, with the ornithological specificity of a color named for one feather of one bird.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#137c82
Original
#727683
Protanopia
#636b82
Deuteranopia
#00817e
Tritanopia
#666666
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon White
4.96:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.23:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##137C82
Display P3
Display P3
color(display-p3 0.2242 0.4790 0.5042)
P3 has subtle headroomOKLCH chroma 0.087

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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