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Resplendent Akhdar

#66ecb1
Notes

Resplendent Akhdar (#66ECB1) is a true teal with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (154°, 78%, 66%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#66ecb1
RGB
rgb(102, 236, 177)
HSL
hsl(154, 78%, 66%)
HWB
hwb(154 40% 7%)
OKLCH
oklch(85.3% 0.146 161.8)
HSV
hsv(154, 57%, 93%)
LAB
lab(84.99% -50.25 17.75)
LCH
lch(84.99% 53.30 160.54)
CMYK
cmyk(57%, 0%, 25%, 7%)

Etymology

Resplendent
adjective

Latin resplendēns, shining-back — present-participle of resplendere. As a color modifier, resplendent implies a saturated-and-magnificent-shining quality, the bright color of Imperial-court full-formal-regalia gold-and-silver-and-jewel reflective surfaces. Sits at the bright-and-saturated end of the grid, parallel to radiant and brilliant in usage.

Akhdar
noun

The Arabic word for green — used for the deep green of the Khidr (the Green One) in Islamic mysticism, the green domes of mosques, and the Jabal al-Akhdar (Green Mountain) of Oman. The color refers to a Saudi mosque-dome glaze: a saturated, slightly cool deep green with the high gloss of fired ceramic glaze.

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

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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.

#66ecb1
Original
#e9dcae
Protanopia
#d6cfb5
Deuteranopia
#2becdc
Tritanopia
#cbcbcb
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).
Failon White
1.48:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
14.20:1

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