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Mighty Kabud

#155ab1
Notes

Mighty Kabud (#155AB1) 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 (213°, 79%, 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
#155ab1
RGB
rgb(21, 90, 177)
HSL
hsl(213, 79%, 39%)
HWB
hwb(213 8% 31%)
OKLCH
oklch(47.8% 0.154 257.0)
P3
color(display-p3 0.1693 0.3477 0.6710)
HSV
hsv(213, 88%, 69%)
LAB
lab(38.98% 13.16 -51.97)
LCH
lch(38.98% 53.61 284.21)
CMYK
cmyk(88%, 49%, 0%, 31%)

Etymology

Mighty
adjective

Old English mihtig, strong — adjectival suffix -y, sharing root with German mächtig. As a color modifier, mighty implies a saturated-and-strong-presence quality, where the hue commands visual attention through pure pigmentation strength. Sits at the bold-and-saturated end of the grid, parallel to forceful and commanding in tone.

Kabud
noun

The Arabic word for blue — used in classical Arabic poetry for the blue of the sea, the sky, and Persian-tile mosques. Kabud spans the deep azure-blue range distinct from azraq (sky-blue) and neel (indigo). The color refers to the kabud-glazed dome of the Imam Mosque at Isfahan: a saturated, slightly cool deep blue with the high gloss of fired faience.

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.

#155ab1
Original
#2563b4
Protanopia
#0055af
Deuteranopia
#006f7d
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
6.71:1
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
3.13:1

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
##155AB1
Display P3
Display P3
color(display-p3 0.1693 0.3477 0.6710)
P3 has subtle headroomOKLCH chroma 0.154

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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