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Bridled Oolong

#2b575c
Notes

Bridled Oolong (#2B575C) is a deep cyan with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (186°, 36%, 26%) 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
#2b575c
RGB
rgb(43, 87, 92)
HSL
hsl(186, 36%, 26%)
HWB
hwb(186 17% 64%)
OKLCH
oklch(42.7% 0.049 205.1)
P3
color(display-p3 0.2115 0.3371 0.3571)
HSV
hsv(186, 53%, 36%)
LAB
lab(34.19% -13.63 -7.59)
LCH
lch(34.19% 15.60 209.12)
CMYK
cmyk(53%, 5%, 0%, 64%)

Etymology

Bridled
adjective

Old English brigdel, bridle — past-participle of bridle. As a color modifier, bridled implies a hushed-and-restrained-and-controlled quality where the hue carries the visual register of intentionally-controlled-and-restrained color-amplitude limitation. Sits at the hushed-and-restrained end of the grid, parallel to curbed and restrained in usage.

Oolong
noun

The partially-oxidized Chinese tea — qīng-chá (cyan tea) — with the deep blue-green liquor distinct from green tea (lower oxidation) and black tea (higher oxidation). The color refers to fresh-brewed Tieguanyin oolong: a saturated, slightly cool deep blue-green with the optical depth of partially-fermented tea liquor.

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.

#2b575c
Original
#51545c
Protanopia
#494e5c
Deuteranopia
#0d5a58
Tritanopia
#4e4e4e
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).
AAAon White
8.01:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.62:1

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
##2B575C
Display P3
Display P3
color(display-p3 0.2115 0.3371 0.3571)
Inside sRGBOKLCH chroma 0.049

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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