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Brimming Cornflower

#277edd
Notes

Brimming Cornflower (#277EDD) 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°, 73%, 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
#277edd
RGB
rgb(39, 126, 221)
HSL
hsl(211, 73%, 51%)
HWB
hwb(211 15% 13%)
OKLCH
oklch(59.2% 0.166 254.1)
P3
color(display-p3 0.2570 0.4872 0.8400)
HSV
hsv(211, 82%, 87%)
LAB
lab(52.48% 8.75 -55.56)
LCH
lch(52.48% 56.25 278.95)
CMYK
cmyk(82%, 43%, 0%, 13%)

Etymology

Brimming
adjective

Old English brymme, brim / edge — present-participle of brim. As a color modifier, brimming implies a saturated-and-overflowing quality where the hue spills past the edge of its visual container with rich pigmentation. Sits at the bold-and-saturated end of the grid, parallel to replete and abundant.

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.

#277edd
Original
#4d86e1
Protanopia
#2976db
Deuteranopia
#0095a3
Tritanopia
#727272
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
4.11:1
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
5.11:1

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
##277EDD
Display P3
Display P3
color(display-p3 0.2570 0.4872 0.8400)
P3 has subtle headroomOKLCH chroma 0.166

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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