colors
Back to gallery

Centered Tundra

#257d0f
Notes

Centered Tundra (#257D0F) 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 (108°, 79%, 27%) 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
#257d0f
RGB
rgb(37, 125, 15)
HSL
hsl(108, 79%, 27%)
HWB
hwb(108 6% 51%)
OKLCH
oklch(51.8% 0.161 140.6)
P3
color(display-p3 0.2519 0.4833 0.1496)
HSV
hsv(108, 88%, 49%)
LAB
lab(45.76% -45.44 46.53)
LCH
lch(45.76% 65.04 134.33)
CMYK
cmyk(70%, 0%, 88%, 51%)

Etymology

Centered
adjective

Latin centrum, center — past-participle of center. As a color modifier, centered implies a saturated-and-grounded-and-balanced quality where the hue occupies the visual center of its palette without drift. Sits at the bold-and-balanced end of the grid, parallel to poised and grounded.

Tundra
noun

The treeless biome of arctic and subarctic regions — characterized by short summer growing seasons, permafrost, and dwarf woody plants. Tundra color refers to a Yukon tundra landscape in midsummer: a soft, slightly muted deep yellow-green with the matte finish of low-stature Vaccinium and Salix shrubs.

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.

#257d0f
Original
#817100
Protanopia
#766a1e
Deuteranopia
#13796a
Tritanopia
#626262
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).
AAon White
5.23:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.02:1

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
##257D0F
Display P3
Display P3
color(display-p3 0.2519 0.4833 0.1496)
P3 has subtle headroomOKLCH chroma 0.161

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.

Related Colors

Canvas