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Simple Grizzle

#1d013a
Notes

Simple Grizzle (#1D013A) 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 (269°, 97%, 12%) 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
#1d013a
RGB
rgb(29, 1, 58)
HSL
hsl(269, 97%, 12%)
HWB
hwb(269 0% 77%)
OKLCH
oklch(19.4% 0.101 299.6)
P3
color(display-p3 0.1009 0.0091 0.2173)
HSV
hsv(269, 98%, 23%)
LAB
lab(5.31% 27.12 -30.00)
LCH
lch(5.31% 40.44 312.11)
CMYK
cmyk(50%, 98%, 0%, 77%)

Etymology

Simple
adjective

Latin simplus, single — sharing root with English single and simplex. As a color modifier, simple implies a neutral-and-uncomplicated-and-stripped-down quality where the hue carries the visual register of Shaker-and-Quaker-craft uncomplicated-and-honest hand-built-craft surface-finish. Sits at the neutral-and-stripped-down end of the grid, parallel to unassuming and modest in usage.

Grizzle
noun

The mottled gray of mixed dark and white hairs — the coat of an aging dog, a salt-and-pepper beard, the grizzled veteran of Civil War photographs. The color refers to a grizzled horse coat or human hair: a soft, slightly muted gray with the optical complexity of intermixed individual fibers of different value. Cooler than wolf, warmer than steel, with the descriptive weight of a word that almost always implies aging or weathering.

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.

#1d013a
Original
#00123b
Protanopia
#001139
Deuteranopia
#16111e
Tritanopia
#0b0b0b
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
18.79:1
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
1.12:1

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
##1D013A
Display P3
Display P3
color(display-p3 0.1009 0.0091 0.2173)
P3 has subtle headroomOKLCH chroma 0.101

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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