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Sullen Jaipur

#28288b
Notes

Sullen Jaipur (#28288B) is a true blue 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 (240°, 55%, 35%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#28288b
RGB
rgb(40, 40, 139)
HSL
hsl(240, 55%, 35%)
HWB
hwb(240 16% 45%)
OKLCH
oklch(35.1% 0.159 274.5)
P3
color(display-p3 0.1569 0.1569 0.5240)
HSV
hsv(240, 71%, 55%)
LAB
lab(23.11% 33.70 -54.76)
LCH
lch(23.11% 64.30 301.61)
CMYK
cmyk(71%, 71%, 0%, 45%)

Etymology

Sullen
adjective

Old French solain, solitary via Anglo-French solein. As a color modifier, sullen implies a deep-and-cool-and-withholding quality, the dark cool-gray of Norwegian-fjord mid-winter atmospheric-overcast and saturated-saltwater-cliff in late-November light. Sits at the deep-and-cool end of the grid, parallel to gloomy and saturnine in atmospheric tone.

Jaipur
noun

The Indian Pink City of Rajasthan, capital of the former Jaipur State of the Rajputana — historical depot for the lapis lazuli trade between Afghanistan and the courts of Hindustan, and home of Sanganeri indigo block-printing. Jaipur color refers to a Sanganeri-block-printed muslin: a saturated, slightly cool deep blue-violet with the matte finish of multi-bath fermentation indigo on hand-printed cotton.

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.

#28288b
Original
#003c8e
Protanopia
#003289
Deuteranopia
#004356
Tritanopia
#2f2f2f
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
11.89:1
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
1.77:1

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
##28288B
Display P3
Display P3
color(display-p3 0.1569 0.1569 0.5240)
P3 has subtle headroomOKLCH chroma 0.159

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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