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Surveyed Sufi Teal

#187b80
Notes

Surveyed Sufi Teal (#187B80) 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°, 68%, 30%) 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
#187b80
RGB
rgb(24, 123, 128)
HSL
hsl(183, 68%, 30%)
HWB
hwb(183 9% 50%)
OKLCH
oklch(53.3% 0.085 200.2)
P3
color(display-p3 0.2285 0.4752 0.4967)
HSV
hsv(183, 81%, 50%)
LAB
lab(46.87% -24.72 -10.54)
LCH
lch(46.87% 26.87 203.08)
CMYK
cmyk(81%, 4%, 0%, 50%)

Etymology

Surveyed
adjective

Old French surveer, to look upon — past-participle of survey. As a color modifier, surveyed implies a clear-and-measured-and-coordinated quality, the crisp color of Mason-Dixon-Line-and-Royal-Navy-Hydrographic scientific-and-cadastral land-and-sea surveying tradition. Sits at the crisp-and-mapped end of the grid, parallel to mapped and plotted in usage.

Sufi
modifier

Arabic صوفي, Sufi. As a color modifier, sufi implies a Whirling-Dervish-and-mystical-Islamic quality, the visual register of Persian-and-Anatolian-Sufi Sufi hand-woven robe-and-felt-cap-and-whirling-dance Sufi-mystical-Islamic surfaces under Konya-and-Persian Sufi-Whirling-Dervish ceremonial-robe candlelight. Sits at the modifier-and-cultural end of the grid, parallel to zen and tao 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.

#187b80
Original
#717580
Protanopia
#636b80
Deuteranopia
#00807c
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
5.02:1
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
4.18:1

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
##187B80
Display P3
Display P3
color(display-p3 0.2285 0.4752 0.4967)
P3 has subtle headroomOKLCH chroma 0.085

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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