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Hemmed Chrysoberyl

#28570d
Notes

Hemmed Chrysoberyl (#28570D) is a deep lime 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 (98°, 74%, 20%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#28570d
RGB
rgb(40, 87, 13)
HSL
hsl(98, 74%, 20%)
HWB
hwb(98 5% 66%)
OKLCH
oklch(40.8% 0.114 137.0)
HSV
hsv(98, 85%, 34%)
LAB
lab(32.47% -30.00 35.00)
LCH
lch(32.47% 46.10 130.60)
CMYK
cmyk(54%, 0%, 85%, 66%)

Etymology

Hemmed
adjective

Old English hem, border — past-participle of hem. As a color modifier, hemmed implies a clear-and-finished-and-bordered quality where the hue carries the visual register of carefully-hemmed-and-finished textile-edge. Sits at the crisp-and-finished end of the grid, parallel to trim and finished in usage.

Chrysoberyl
noun

A beryllium-aluminum oxide gem — particularly the chartreuse-green variety distinguished from emerald by its different chemistry. Mined principally in Brazil, Sri Lanka, and Madagascar. The color refers to a faceted Brazilian chrysoberyl: a saturated, slightly cool yellow-green with the gem's signature high refractive index.

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.

#28570d
Original
#5a4f00
Protanopia
#544b15
Deuteranopia
#255449
Tritanopia
#484848
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
8.54:1
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
2.46:1

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