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Heroic Bondi

#0a5fa9
Notes

Heroic Bondi (#0A5FA9) is a true azure with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (208°, 89%, 35%) 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
#0a5fa9
RGB
rgb(10, 95, 169)
HSL
hsl(208, 89%, 35%)
HWB
hwb(208 4% 34%)
OKLCH
oklch(48.2% 0.139 251.9)
P3
color(display-p3 0.1634 0.3667 0.6418)
HSV
hsv(208, 94%, 66%)
LAB
lab(39.77% 6.03 -45.97)
LCH
lch(39.77% 46.37 277.47)
CMYK
cmyk(94%, 44%, 0%, 34%)

Etymology

Heroic
adjective

Latin hēroicus, of a hero — derived from Greek hērōs. As a color modifier, heroic implies a saturated-and-monumental-and-victorious quality, the deep-rich color of Wagner-and-Sibelius late-Romantic-era musical-and-painterly heroic-mode. Sits at the bold-and-celebratory end of the grid, parallel to triumphant and valiant.

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.

#0a5fa9
Original
#3865ac
Protanopia
#1858a8
Deuteranopia
#00717b
Tritanopia
#525252
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).
AAon White
6.52:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.22:1

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
##0A5FA9
Display P3
Display P3
color(display-p3 0.1634 0.3667 0.6418)
P3 has subtle headroomOKLCH chroma 0.139

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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