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Sinister Toucan

#642b1c
Notes

Sinister Toucan (#642B1C) is a deep red with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (13°, 56%, 25%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#642b1c
RGB
rgb(100, 43, 28)
HSL
hsl(13, 56%, 25%)
HWB
hwb(13 11% 61%)
OKLCH
oklch(36.6% 0.087 35.8)
P3
color(display-p3 0.3641 0.1813 0.1258)
HSV
hsv(13, 72%, 39%)
LAB
lab(25.33% 24.54 21.88)
LCH
lch(25.33% 32.88 41.73)
CMYK
cmyk(0%, 57%, 72%, 61%)

Etymology

Sinister
adjective

Latin sinister, left / unlucky — used in classical-augury for the unfavorable left-hand-side of bird-flight omen-reading. As a color modifier, sinister implies a deep-and-foreboding-and-uncanny quality, the dark of Gothic-novel atmospheric-shadow and threatening-presence. Sits at the deep-and-uncanny end of the grid, parallel to foreboding and menacing in atmospheric register.

Toucan
noun

The family Ramphastidae — tropical American birds with oversized colorful beaks. Toucan refers specifically to the keel-billed toucan (Ramphastos sulfuratus) whose beak is colored in green, yellow, orange, and red. The color refers to the orange section of a toucan's beak: a saturated, slightly red orange with the matte finish of keratin. Warmer than oriole.

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.

#642b1c
Original
#3a341a
Protanopia
#48411b
Deuteranopia
#6e2028
Tritanopia
#363636
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
11.03:1
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
1.90:1

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
##642B1C
Display P3
Display P3
color(display-p3 0.3641 0.1813 0.1258)
P3 has subtle headroomOKLCH chroma 0.087

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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