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Brimming Aegirine

#374fa6
Notes

Brimming Aegirine (#374FA6) is a true blue with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (227°, 50%, 43%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#374fa6
RGB
rgb(55, 79, 166)
HSL
hsl(227, 50%, 43%)
HWB
hwb(227 22% 35%)
OKLCH
oklch(45.8% 0.143 268.6)
P3
color(display-p3 0.2356 0.3072 0.6291)
HSV
hsv(227, 67%, 65%)
LAB
lab(36.28% 20.15 -49.73)
LCH
lch(36.28% 53.65 292.06)
CMYK
cmyk(67%, 52%, 0%, 35%)

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.

Aegirine
noun

A sodium-iron pyroxene mineral — often saturated dark blue-green-black, mined principally in Norway, Greenland, and Russia. The name traces to Ægir, the Norse god of the sea. The color refers to a polished Norwegian aegirine specimen: a deep, slightly cool dark blue-green-black with the slight metallic luster of pyroxene.

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.

#374fa6
Original
#195ba9
Protanopia
#0051a4
Deuteranopia
#006373
Tritanopia
#505050
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).
AAAon White
7.42:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.83:1

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
##374FA6
Display P3
Display P3
color(display-p3 0.2356 0.3072 0.6291)
P3 has subtle headroomOKLCH chroma 0.143

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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