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Severe Citrus

#1a1d0e
Notes

Severe Citrus (#1A1D0E) is a deep yellow with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (72°, 35%, 8%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#1a1d0e
RGB
rgb(26, 29, 14)
HSL
hsl(72, 35%, 8%)
HWB
hwb(72 5% 89%)
OKLCH
oklch(22.3% 0.027 117.9)
HSV
hsv(72, 52%, 11%)
LAB
lab(10.03% -4.70 8.95)
LCH
lch(10.03% 10.11 117.73)
CMYK
cmyk(10%, 0%, 52%, 89%)

Etymology

Severe
adjective

Latin sevērus, strict / serious. As a color modifier, severe implies a deep-and-uncompromising-formal quality, the dark plain-textile color of Cistercian and Calvinist anti-decorative interior aesthetic. Sits at the deep-and-formal end of the grid, parallel to austere and stern in tone.

Citrus
noun

The genus Citrus — and a generic yellow color word for the rind of any Citrus fruit. Citrus refers to the average reflectance of a mixed citrus fruit bowl: a saturated, slightly cool deep yellow with the satin finish of waxed citrus rind.

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.

#1a1d0e
Original
#1f1b0d
Protanopia
#1f1c0f
Deuteranopia
#1b1b19
Tritanopia
#1b1b1b
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).
AAAon White
17.13:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.23:1

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