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Bucolic Graphite

#42535b
Notes

Bucolic Graphite (#42535B) is a deep cyan with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (199°, 16%, 31%) places it in the muted 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#42535b
RGB
rgb(66, 83, 91)
HSL
hsl(199, 16%, 31%)
HWB
hwb(199 26% 64%)
OKLCH
oklch(43.1% 0.025 228.1)
P3
color(display-p3 0.2721 0.3235 0.3533)
HSV
hsv(199, 27%, 36%)
LAB
lab(34.19% -4.50 -6.83)
LCH
lch(34.19% 8.18 236.62)
CMYK
cmyk(27%, 9%, 0%, 64%)

Etymology

Bucolic
adjective

Greek boukolikós, of-cattle-herding — adjectival suffix -ic. As a color modifier, bucolic implies a neutral-and-rural-and-pastoral quality, the neutral color of Constable-Stour-Valley-painting and Beethoven-Pastoral idyllic-rural-pastoral mood-evoking color treatment. Sits at the neutral-and-traditional end of the grid, parallel to pastoral and idyllic 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.

#42535b
Original
#4f525b
Protanopia
#4b4f5b
Deuteranopia
#3b5555
Tritanopia
#505050
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
8.02:1
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
2.62:1

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
##42535B
Display P3
Display P3
color(display-p3 0.2721 0.3235 0.3533)
Inside sRGBOKLCH chroma 0.025

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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