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Blazing Cowslip

#89b507
Notes

Blazing Cowslip (#89B507) is a true 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 (75°, 93%, 37%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#89b507
RGB
rgb(137, 181, 7)
HSL
hsl(75, 93%, 37%)
HWB
hwb(75 3% 29%)
OKLCH
oklch(71.5% 0.179 125.3)
P3
color(display-p3 0.5729 0.7049 0.2199)
HSV
hsv(75, 96%, 71%)
LAB
lab(68.30% -35.17 68.43)
LCH
lch(68.30% 76.94 117.20)
CMYK
cmyk(24%, 0%, 96%, 29%)

Etymology

Blazing
adjective

Old English blǣse, flame — present-participle of blaze. As a color modifier, blazing implies a saturated-and-bright-flaming quality, the bright color of Yule-log and Bonfire-Night large-flame fire-emission. Sits at the bright-and-warm end of the grid, parallel to flaming and scorching in usage.

Cowslip
noun

Primula veris, the European meadow primrose whose yellow flower clusters appear in late spring. The name traces to Old English cū-slyppe, cow-slop (i.e., cow dung — for where it grew). The color refers to fresh cowslip in May meadow: a soft, slightly red-shifted pale yellow with the matte finish of small five-petaled flowers in tight clusters.

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.

#89b507
Original
#bfa800
Protanopia
#baa626
Deuteranopia
#90ac9a
Tritanopia
#9f9f9f
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
2.42:1
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
8.68:1

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
##89B507
Display P3
Display P3
color(display-p3 0.5729 0.7049 0.2199)
P3 has subtle headroomOKLCH chroma 0.179

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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