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Firm Aral

#257dde
Notes

Firm Aral (#257DDE) 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 (211°, 74%, 51%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#257dde
RGB
rgb(37, 125, 222)
HSL
hsl(211, 74%, 51%)
HWB
hwb(211 15% 13%)
OKLCH
oklch(59.0% 0.168 254.4)
HSV
hsv(211, 83%, 87%)
LAB
lab(52.21% 9.58 -56.55)
LCH
lch(52.21% 57.36 279.62)
CMYK
cmyk(83%, 44%, 0%, 13%)

Etymology

Firm
adjective

Latin firmus, strong / stable — sharing root with English farm (originally a fixed-yearly-rental). As a color modifier, firm implies a saturated-and-resolute quality where the hue holds its visual position without wavering. Sits at the bold-and-firm end of the grid, parallel to steadfast and unwavering in usage.

Aral
noun

The Aral Sea — formerly the world's fourth-largest lake, between Kazakhstan and Uzbekistan, now reduced to a tenth of its size by Soviet-era irrigation diversions. Aral refers to historical mid-depth Aral Sea water: a saturated, slightly cool deep blue with the optical complexity of slightly saline Central Asian inland 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.

#257dde
Original
#4a85e2
Protanopia
#2375dc
Deuteranopia
#0094a3
Tritanopia
#717171
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
4.14:1
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
5.07:1

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