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Lambent Primrose

#ac9b0f
Notes

Lambent Primrose (#AC9B0F) is a true amber 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 (54°, 84%, 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#ac9b0f
RGB
rgb(172, 155, 15)
HSL
hsl(54, 84%, 37%)
HWB
hwb(54 6% 33%)
OKLCH
oklch(68.3% 0.140 101.3)
P3
color(display-p3 0.6633 0.6102 0.2064)
HSV
hsv(54, 91%, 67%)
LAB
lab(63.55% -6.96 64.78)
LCH
lch(63.55% 65.16 96.13)
CMYK
cmyk(0%, 10%, 91%, 33%)

Etymology

Lambent
adjective

Latin lambēns, licking-lightly — present-participle of lambere (to lick). As a color modifier, lambent implies a saturated-and-soft-flickering quality, the bright color of candle-flame-and-firefly gentle-flickering light-emission against the surrounding darkness. Sits at the bright-and-soft end of the grid, parallel to glimmering and flickering in usage.

Primrose
noun

Primula vulgaris, the European primrose whose pale yellow flowers appear in early spring — prima rosa (first rose) for its early bloom. The color refers to a fresh primrose in March: a soft, slightly cool pale yellow with the satin finish of five-petaled flower with darker yellow center. Cooler than cowslip.

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.

#ac9b0f
Original
#ab9600
Protanopia
#b09d1f
Deuteranopia
#ba8f84
Tritanopia
#959595
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
2.82:1
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
7.45:1

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
##AC9B0F
Display P3
Display P3
color(display-p3 0.6633 0.6102 0.2064)
P3 has subtle headroomOKLCH chroma 0.140

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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