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Bold Cornflower

#0575c1
Notes

Bold Cornflower (#0575C1) is a true azure with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (204°, 95%, 39%) 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
#0575c1
RGB
rgb(5, 117, 193)
HSL
hsl(204, 95%, 39%)
HWB
hwb(204 2% 24%)
OKLCH
oklch(54.9% 0.146 247.9)
P3
color(display-p3 0.1991 0.4517 0.7343)
HSV
hsv(204, 97%, 76%)
LAB
lab(47.76% 1.53 -47.21)
LCH
lch(47.76% 47.23 271.86)
CMYK
cmyk(97%, 39%, 0%, 24%)

Etymology

Bold
adjective

Old English beald, brave, courageous — a quality word that crossed over to color in the late seventeenth century. Bold describes a color that asserts itself: high saturation combined with mid lightness, where the hue presents itself without compromise. Sits at the center of the bold-bucket grid, near strong and rich. Closer to a presence word than a pigment word.

Cornflower
noun

Centaurea cyanus, the small wild blue flower of European cereal fields — once a weed of wheat agriculture, now nearly extinct in the wild after a century of herbicides. The color refers to a fully open cornflower in summer: a saturated, slightly violet-shifted blue with the spiky daisy structure of the Asteraceae. Cooler than periwinkle, warmer than cobalt, with the agricultural weight of a flower whose name is a synonym for blue in the Slavic and German textile trade.

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.

#0575c1
Original
#4f7ac4
Protanopia
#326ac0
Deuteranopia
#008791
Tritanopia
#636363
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
4.86:1
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
4.32:1

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
##0575C1
Display P3
Display P3
color(display-p3 0.1991 0.4517 0.7343)
P3 has subtle headroomOKLCH chroma 0.146

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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