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Combustive Brooklyn

#538df0
Notes

Combustive Brooklyn (#538DF0) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (218°, 84%, 63%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#538df0
RGB
rgb(83, 141, 240)
HSL
hsl(218, 84%, 63%)
HWB
hwb(218 33% 6%)
OKLCH
oklch(65.1% 0.160 260.4)
HSV
hsv(218, 65%, 94%)
LAB
lab(59.14% 12.02 -55.43)
LCH
lch(59.14% 56.72 282.23)
CMYK
cmyk(65%, 41%, 0%, 6%)

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.

Brooklyn
noun

The New York borough — and the deep blue of Brooklyn Bridge granite anchors-and-steel-cable assembly seen against East River water. Brooklyn refers to Brooklyn Bridge against late-evening city light: a saturated, slightly cool deep blue with the optical complexity of historic stone-and-cable bridge against urban-illuminated water.

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

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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.

#538df0
Original
#5f96f4
Protanopia
#4788ee
Deuteranopia
#00a4b3
Tritanopia
#888888
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).
AA Largeon White
3.26:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.44:1

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