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Hadean Bard Ultramarine

#033196
Notes

Hadean Bard Ultramarine (#033196) is a deep azure 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 (221°, 96%, 30%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#033196
RGB
rgb(3, 49, 150)
HSL
hsl(221, 96%, 30%)
HWB
hwb(221 1% 41%)
OKLCH
oklch(36.5% 0.171 262.7)
P3
color(display-p3 0.0719 0.1888 0.5657)
HSV
hsv(221, 98%, 59%)
LAB
lab(25.00% 29.17 -58.50)
LCH
lch(25.00% 65.37 296.50)
CMYK
cmyk(98%, 67%, 0%, 41%)

Etymology

Hadean
adjective

Greek Hadean, of Hades — adjectival form of Hades. As a color modifier, hadean implies the deep cool-darkness of the classical-Greek underworld realms, with literary-poetic register. Sits at the deep-and-cool end of the grid, parallel to plutonian and Stygian in classical-mythological register.

Bard
modifier

Welsh bardd, poet. As a color modifier, bard implies a Welsh-and-Irish-poet-and-storyteller quality, the visual register of Welsh-Eisteddfod-and-Irish-Bardic hand-spoken poet-and-harp-and-eisteddfod oral-tradition Celtic-bardic surfaces under Welsh-Eisteddfod-and-Irish-Bardic hand-spoken-poet-and-harp oral-tradition Celtic-bardic gathering light. Sits at the modifier-and-cultural end of the grid, parallel to druid and celtic in usage.

Ultramarine
noun

The pigment ground from lapis lazuli — the Afghan mineral imported through Venice in the late Middle Ages, more expensive by weight than gold during the Renaissance. The color refers to a freshly mixed ultramarine pigment in linseed oil: a saturated, slightly violet-shifted deep blue with the matte finish of micron-ground rock. Deeper than cobalt, cooler than royal, with the art-historical weight of the blue Vermeer reserved for Mary's robe.

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.

#033196
Original
#004299
Protanopia
#003594
Deuteranopia
#004d5f
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
11.15:1
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
1.88:1

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
##033196
Display P3
Display P3
color(display-p3 0.0719 0.1888 0.5657)
P3 has subtle headroomOKLCH chroma 0.171

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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