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Resplendent Teal

#40f8f1
Notes

Resplendent Teal (#40F8F1) is a true cyan with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (178°, 93%, 61%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#40f8f1
RGB
rgb(64, 248, 241)
HSL
hsl(178, 93%, 61%)
HWB
hwb(178 25% 3%)
OKLCH
oklch(89.0% 0.141 191.0)
HSV
hsv(178, 74%, 97%)
LAB
lab(89.19% -45.65 -9.67)
LCH
lch(89.19% 46.66 191.95)
CMYK
cmyk(74%, 0%, 3%, 3%)

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.

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.

#40f8f1
Original
#e9ebf1
Protanopia
#cfd8f2
Deuteranopia
#00fff5
Tritanopia
#d0d0d0
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
1.32:1
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
15.92:1

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