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Bold Hut Royal

#456ddf
Notes

Bold Hut Royal (#456DDF) 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 (224°, 71%, 57%) 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
#456ddf
RGB
rgb(69, 109, 223)
HSL
hsl(224, 71%, 57%)
HWB
hwb(224 27% 13%)
OKLCH
oklch(56.8% 0.180 266.2)
P3
color(display-p3 0.3057 0.4234 0.8456)
HSV
hsv(224, 69%, 87%)
LAB
lab(48.92% 23.59 -62.36)
LCH
lch(48.92% 66.67 290.72)
CMYK
cmyk(69%, 51%, 0%, 13%)

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.

Hut
modifier

Old French hutte, small-shelter. As a color modifier, hut implies a one-room-shelter quality, the visual register of Mongolian-and-Highland small one-room timber-and-stone-and-felt nomadic-and-settled shelter surfaces under remote-and-windswept Mongolian-steppe-and-Scottish-Highland one-room shelter light. Sits at the modifier-and-place end of the grid, parallel to tent and lodge in usage.

Royal
noun

The blue of European royal court dress and regalia from the late seventeenth century forward — the color of British peers' robes, French royal sashes, the lining of the crown-jewel cases. The color refers to a saturated, slightly violet-shifted blue with the matte finish of velvet or melton wool dyed to maximum intensity: deeper than cornflower, warmer than ultramarine, with the heraldic weight of a color reserved for monarchs and the official Crown.

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.

#456ddf
Original
#257ce3
Protanopia
#006edd
Deuteranopia
#00889c
Tritanopia
#6d6d6d
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
4.66:1
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
4.51:1

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
##456DDF
Display P3
Display P3
color(display-p3 0.3057 0.4234 0.8456)
P3 has subtle headroomOKLCH chroma 0.180

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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