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Unwavering Nokchaek

#289700
Notes

Unwavering Nokchaek (#289700) is a deep green 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 (104°, 100%, 30%) places it in the highly saturated band at a dark 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#289700
RGB
rgb(40, 151, 0)
HSL
hsl(104, 100%, 30%)
HWB
hwb(104 0% 41%)
OKLCH
oklch(59.1% 0.192 140.5)
HSV
hsv(104, 100%, 59%)
LAB
lab(54.64% -54.06 56.84)
LCH
lch(54.64% 78.44 133.56)
CMYK
cmyk(74%, 0%, 100%, 41%)

Etymology

Unwavering
adjective

Old English un- (negation) plus wafrian (to flicker). As a color modifier, unwavering implies a saturated-and-constant quality where the hue maintains its full strength without flicker or shift. Sits at the bold-and-firm end of the grid, parallel to steadfast and firm in usage.

Nokchaek
noun

The Korean word for green — used in the nokcha (green tea) tradition of Korean Buddhist monastery culture and the deep green of Korean ondol heated-floor textile dyes. The color refers to fresh-brewed Korean nokcha: a saturated, slightly cool deep green with the optical clarity of unfermented 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

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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.

#289700
Original
#9b8800
Protanopia
#8f801e
Deuteranopia
#0a9280
Tritanopia
#747474
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).
AA Largeon White
3.81:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.52:1

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