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Combustive Kansas

#a7b633
Notes

Combustive Kansas (#A7B633) is a true yellow 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 (67°, 56%, 46%) places it in the balanced 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a7b633
RGB
rgb(167, 182, 51)
HSL
hsl(67, 56%, 46%)
HWB
hwb(67 20% 29%)
OKLCH
oklch(74.1% 0.151 115.9)
P3
color(display-p3 0.6658 0.7119 0.2946)
HSV
hsv(67, 72%, 71%)
LAB
lab(70.81% -21.83 61.06)
LCH
lch(70.81% 64.85 109.67)
CMYK
cmyk(8%, 0%, 72%, 29%)

Etymology

Combustive
adjective

Latin combūstus, burnt — adjectival suffix -ive, derived from com-burere (to burn-up). As a color modifier, combustive implies a saturated-and-burning-active quality, the bright color of blast-furnace-and-foundry combustion-chamber emission. Sits at the bright-and-warm end of the grid, parallel to fiery and blazing in usage.

Kansas
noun

The American Midwestern state — and the yellow of Kansas wheat at harvest, sunflower fields (Kansas is the Sunflower State), and the Yellow Brick Road of The Wonderful Wizard of Oz. Kansas refers to a Kansas wheat field at midsummer: a soft, slightly muted warm yellow-tan with the matte finish of ripening grain.

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.

#a7b633
Original
#c3ad1b
Protanopia
#c2ae3e
Deuteranopia
#b2ac9d
Tritanopia
#a9a9a9
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).
Failon White
2.24:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
9.38:1

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
##A7B633
Display P3
Display P3
color(display-p3 0.6658 0.7119 0.2946)
P3 has subtle headroomOKLCH chroma 0.151

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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