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Simple Walrus

#516363
Notes

Simple Walrus (#516363) is a true 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 (180°, 10%, 35%) places it in the muted band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#516363
RGB
rgb(81, 99, 99)
HSL
hsl(180, 10%, 35%)
HWB
hwb(180 32% 61%)
OKLCH
oklch(48.5% 0.022 196.5)
P3
color(display-p3 0.3315 0.3861 0.3872)
HSV
hsv(180, 18%, 39%)
LAB
lab(40.53% -6.79 -2.27)
LCH
lch(40.53% 7.16 198.51)
CMYK
cmyk(18%, 0%, 0%, 61%)

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.

Walrus
noun

Odobenus rosmarus — a large pinniped marine mammal of Arctic-and-Subarctic coastal-and-pack-ice habitats, with mid-glossy-pinkish-gray skin and prominent ivory-tusk teeth. Walrus color refers to a Odobenus rosmarus dorsal-skin on a Svalbard-pack-ice haul-out in raking summer-light: a balanced cool gray with the matte finish of folded-and-leathery pinniped-skin with multi-decade saltwater-and-Arctic-ice patina.

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.

#516363
Original
#616163
Protanopia
#5d5e63
Deuteranopia
#4c6463
Tritanopia
#5f5f5f
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).
AAon White
6.34:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.31:1

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
##516363
Display P3
Display P3
color(display-p3 0.3315 0.3861 0.3872)
Inside sRGBOKLCH chroma 0.022

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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