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Mired Halo

#1d258b
Notes

Mired Halo (#1D258B) is a deep blue 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 (236°, 65%, 33%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1d258b
RGB
rgb(29, 37, 139)
HSL
hsl(236, 65%, 33%)
HWB
hwb(236 11% 45%)
OKLCH
oklch(34.0% 0.165 270.5)
P3
color(display-p3 0.1199 0.1442 0.5237)
HSV
hsv(236, 79%, 55%)
LAB
lab(21.75% 34.42 -57.01)
LCH
lch(21.75% 66.60 301.12)
CMYK
cmyk(79%, 73%, 0%, 45%)

Etymology

Mired
adjective

Old Norse mýrr, mire / bog — past-participle of mire. As a color modifier, mired implies the deep-and-stuck-and-warm-brown quality of bog-and-peat-and-marsh-mud-immersion, like a Yorkshire-Moors hiker's boots after a rainy day on the saturated peat. Sits at the deep-and-warm end of the grid, parallel to peat-stained with earthy register.

Halo
noun

Greek hálōs, threshing floor — adopted into Christian iconography as the circular disc behind the head of saintly figures, traditionally rendered in ultramarine lapis-and-gold-leaf in Greek-school and Russian-school icon panels. Halo color refers to a 14th-century Russian-school Theotokos icon's halo field: a saturated, slightly cool deep blue-violet with the matte finish of egg-tempera-bound ultramarine over gesso ground.

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.

#1d258b
Original
#00398e
Protanopia
#002f89
Deuteranopia
#004255
Tritanopia
#2b2b2b
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
12.43:1
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
1.69:1

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
##1D258B
Display P3
Display P3
color(display-p3 0.1199 0.1442 0.5237)
P3 has subtle headroomOKLCH chroma 0.165

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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