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Handmade Graphite

#170839
Notes

Handmade Graphite (#170839) 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 (258°, 75%, 13%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#170839
RGB
rgb(23, 8, 57)
HSL
hsl(258, 75%, 13%)
HWB
hwb(258 3% 78%)
OKLCH
oklch(19.7% 0.088 289.9)
P3
color(display-p3 0.0822 0.0340 0.2138)
HSV
hsv(258, 86%, 22%)
LAB
lab(5.88% 21.41 -28.39)
LCH
lch(5.88% 35.56 307.02)
CMYK
cmyk(60%, 86%, 0%, 78%)

Etymology

Handmade
adjective

English compound hand + past-participle made — sharing root with make. As a color modifier, handmade implies a neutral-and-hand-built-and-craft quality, the neutral color of Mingei-Japanese-and-Shaker-and-Wedgwood hand-built-and-craft-tradition pottery-and-textile-and-furniture surface-finish. Sits at the neutral-and-traditional end of the grid, parallel to handcrafted and artisanal in usage.

Graphite
noun

A crystalline allotrope of carbon — the same element as diamond but with a layered structure that gives it a metallic luster, lubricity, and the property of leaving black traces on paper. Mined principally in Sri Lanka and Mozambique. The color refers to a freshly sharpened pencil tip: a deep, slightly muted gray-black with the slight metallic shine of layered crystalline carbon. Warmer than charcoal, lighter than ink.

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.

#170839
Original
#00143a
Protanopia
#001238
Deuteranopia
#0b1520
Tritanopia
#0f0f0f
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
18.58:1
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
1.13:1

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
##170839
Display P3
Display P3
color(display-p3 0.0822 0.0340 0.2138)
P3 has subtle headroomOKLCH chroma 0.088

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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