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Truthful Bondi

#51aeef
Notes

Truthful Bondi (#51AEEF) 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 (205°, 83%, 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#51aeef
RGB
rgb(81, 174, 239)
HSL
hsl(205, 83%, 63%)
HWB
hwb(205 32% 6%)
OKLCH
oklch(72.2% 0.129 242.1)
P3
color(display-p3 0.4139 0.6741 0.9153)
HSV
hsv(205, 66%, 94%)
LAB
lab(68.20% -7.65 -40.57)
LCH
lch(68.20% 41.29 259.32)
CMYK
cmyk(66%, 27%, 0%, 6%)

Etymology

Truthful
adjective

Old English trēowth, truth — adjectival suffix -ful. As a color modifier, truthful implies a clear-and-honest-and-direct quality where the hue carries the visual register of accurate-and-faithful-representation declaration. Sits at the crisp-and-honest end of the grid, parallel to candid and honest in usage.

Bondi
noun

Bondi Beach, the kilometer of golden sand and surf in eastern Sydney — Australian for water breaking over rocks, from the Aboriginal Dharug word boondi. The color refers to mid-depth Bondi water on a sunny morning: a saturated, slightly green-shifted blue with the optical clarity of South Pacific water hitting a sandstone shoreline. Brighter than aegean, cooler than caribbean, with the surf-culture association of a beach featured in a million postcards.

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.

#51aeef
Original
#91aff2
Protanopia
#7b9fee
Deuteranopia
#00bec5
Tritanopia
#9f9f9f
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
2.43:1
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
8.65:1

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
##51AEEF
Display P3
Display P3
color(display-p3 0.4139 0.6741 0.9153)
P3 has subtle headroomOKLCH chroma 0.129

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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