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Resolute Celeste

#2b7bdf
Notes

Resolute Celeste (#2B7BDF) 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 (213°, 74%, 52%) 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
#2b7bdf
RGB
rgb(43, 123, 223)
HSL
hsl(213, 74%, 52%)
HWB
hwb(213 17% 13%)
OKLCH
oklch(58.8% 0.171 256.2)
HSV
hsv(213, 81%, 87%)
LAB
lab(51.84% 11.72 -57.70)
LCH
lch(51.84% 58.88 281.49)
CMYK
cmyk(81%, 45%, 0%, 13%)

Etymology

Resolute
adjective

From the Latin resolutus, unwavering — used as a color modifier in literary contexts for hues that read as committed and unmoving. Resolute blue, resolute green: the saturation is full, the hue holds its position without shifting under different light. Sits in the bold-bucket center alongside strong and true, with slightly more focus on stability than presence.

Celeste
noun

Italian and Spanish for celestial — the pale, slightly green-shifted blue of a Tuscan sky in summer or a Bolognese fresco background. Celeste as a color borrowing into English carries the same association: a clean, very pale blue with the matte finish of distemper paint. Lighter than azure, cooler than powder, with the Italian-architectural weight of a word that names the soffit color of a hundred Renaissance ceilings.

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.

#2b7bdf
Original
#4684e3
Protanopia
#1b74dd
Deuteranopia
#0093a2
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
4.20:1
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
5.00:1

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