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Spectral Artemisia

#51fbda
Notes

Spectral Artemisia (#51FBDA) is a true teal 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 (168°, 96%, 65%) 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
#51fbda
RGB
rgb(81, 251, 218)
HSL
hsl(168, 96%, 65%)
HWB
hwb(168 32% 2%)
OKLCH
oklch(89.3% 0.146 177.0)
P3
color(display-p3 0.5260 0.9710 0.8595)
HSV
hsv(168, 68%, 98%)
LAB
lab(89.77% -50.82 3.19)
LCH
lch(89.77% 50.92 176.41)
CMYK
cmyk(68%, 0%, 13%, 2%)

Etymology

Spectral
adjective

Latin spectrum, appearance — adjectival suffix -al. As a color modifier, spectral implies a saturated-and-rainbow-decomposed-and-pure quality, the bright color of Newton-prism sunlight-decomposed seven-color spectrum band. Sits at the bright-and-pure end of the grid, parallel to prismatic and pure in usage.

Artemisia
noun

The genus Artemisia — sage-and-wormwood-and-mugwort relatives whose silver-green leaves define Mediterranean dry-garden landscaping. The color refers to a fresh Artemisia ludoviciana cultivated in a Provençal garden: a soft, slightly cool gray-green with the matte velvet finish of pubescent silver leaf.

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.

#51fbda
Original
#f2ecd9
Protanopia
#dadbdd
Deuteranopia
#00fef1
Tritanopia
#d4d4d4
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
1.30:1
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
16.16:1

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
##51FBDA
Display P3
Display P3
color(display-p3 0.5260 0.9710 0.8595)
P3 has subtle headroomOKLCH chroma 0.146

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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