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Scorching Curcuma

#a1ca21
Notes

Scorching Curcuma (#A1CA21) is a true lime with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (75°, 72%, 46%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#a1ca21
RGB
rgb(161, 202, 33)
HSL
hsl(75, 72%, 46%)
HWB
hwb(75 13% 21%)
OKLCH
oklch(78.2% 0.185 123.5)
P3
color(display-p3 0.6637 0.7875 0.2777)
HSV
hsv(75, 84%, 79%)
LAB
lab(76.02% -34.58 70.98)
LCH
lch(76.02% 78.96 115.97)
CMYK
cmyk(20%, 0%, 84%, 21%)

Etymology

Scorching
adjective

Old English scorcnian, to dry up — present-participle of scorch. As a color modifier, scorching implies a saturated-and-burning-hot quality, the bright color of Mojave-Desert-and-Death-Valley mid-afternoon high-temperature surface-emission. Sits at the bright-and-warm end of the grid, parallel to searing and sizzling in usage.

Curcuma
noun

The Linnaean genus name for turmeric — Curcuma longa — used in pigment vocabulary for the pure curcumin yellow extracted from the rhizome. Curcuma as a color refers specifically to the pigment isolated from C. longa: a saturated, slightly cool deep yellow with the matte finish of plant-derived pigment. The botanical-Latin cousin of haldi.

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.

#a1ca21
Original
#d6bd00
Protanopia
#d1bb35
Deuteranopia
#aac0ac
Tritanopia
#b5b5b5
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
1.91:1
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
10.99:1

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
##A1CA21
Display P3
Display P3
color(display-p3 0.6637 0.7875 0.2777)
P3 has visible headroomOKLCH chroma 0.185

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

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