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Warm Goshawk

#180037
Notes

Warm Goshawk (#180037) is a deep indigo 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 (266°, 100%, 11%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#180037
RGB
rgb(24, 0, 55)
HSL
hsl(266, 100%, 11%)
HWB
hwb(266 0% 78%)
OKLCH
oklch(18.1% 0.099 295.9)
P3
color(display-p3 0.0825 0.0039 0.2058)
HSV
hsv(266, 100%, 22%)
LAB
lab(4.25% 24.66 -29.57)
LCH
lch(4.25% 38.50 309.82)
CMYK
cmyk(56%, 100%, 0%, 78%)

Etymology

Warm
adjective

Old English wearm, of moderate heat — used as a color modifier since the medieval period for hues that read as containing red, orange, or yellow undertones. Warm gray, warm white: not necessarily a temperature, but the optical impression of a slight red-orange shift. Sits across the crisp and neutral buckets.

Goshawk
noun

Eurasian Accipiter gentilis — a Accipitridae large forest-raptor of European-and-North-Asian boreal-forest canopies, with deep-glossy-blue-gray dorsal-feathers and a barred-white ventral-feather pattern. Goshawk color refers to a Accipiter gentilis female adult dorsal-feather field in raking light: a dark cool-gray with the matte finish of melanin-pigmented forest-raptor-and-cryptic feather barbs.

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.

#180037
Original
#000f38
Protanopia
#000e36
Deuteranopia
#0f0f1c
Tritanopia
#090909
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
19.20:1
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
1.09:1

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
##180037
Display P3
Display P3
color(display-p3 0.0825 0.0039 0.2058)
P3 has subtle headroomOKLCH chroma 0.099

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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