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Cordial Bronzite

#1d0334
Notes

Cordial Bronzite (#1D0334) 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 (272°, 89%, 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
#1d0334
RGB
rgb(29, 3, 52)
HSL
hsl(272, 89%, 11%)
HWB
hwb(272 1% 80%)
OKLCH
oklch(19.1% 0.091 303.2)
P3
color(display-p3 0.1016 0.0166 0.1949)
HSV
hsv(272, 94%, 20%)
LAB
lab(5.19% 23.76 -25.81)
LCH
lch(5.19% 35.08 312.63)
CMYK
cmyk(44%, 94%, 0%, 80%)

Etymology

Cordial
adjective

Latin cordiālis, of-the-heart — adjectival suffix -al. As a color modifier, cordial implies a neutral-and-warm-and-friendly quality where the hue carries the visual register of Edwardian-Bed-and-Breakfast-and-country-inn warm-and-cordial-host interior-decoration-and-textile color tone. Sits at the neutral-and-friendly end of the grid, parallel to affable and amiable in usage.

Bronzite
noun

(Mg,Fe)SiO₃ iron-bearing pyroxene — a deep-bronze-gray mineral mined principally at Kraubath in Austria and Webster in North Carolina, the namesake of the Bronze Age. Bronzite color refers to a freshly cleaved Kraubath bronzite schiller-cleavage face: a dark cool-gray with the metallic finish of orthorhombic-system iron-magnesium pyroxene with chatoyant-iron schiller.

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.

#1d0334
Original
#001135
Protanopia
#001133
Deuteranopia
#180f1b
Tritanopia
#0c0c0c
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
18.84:1
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
1.11:1

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
##1D0334
Display P3
Display P3
color(display-p3 0.1016 0.0166 0.1949)
P3 has subtle headroomOKLCH chroma 0.091

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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