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Gallant Sepehr

#137ee9
Notes

Gallant Sepehr (#137EE9) is a true azure with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (210°, 85%, 49%) 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
#137ee9
RGB
rgb(19, 126, 233)
HSL
hsl(210, 85%, 49%)
HWB
hwb(210 7% 9%)
OKLCH
oklch(59.7% 0.184 254.3)
HSV
hsv(210, 92%, 91%)
LAB
lab(52.88% 12.08 -61.66)
LCH
lch(52.88% 62.83 281.08)
CMYK
cmyk(92%, 46%, 0%, 9%)

Etymology

Gallant
adjective

Old French galant, brave / charming — present-participle of galer (to make merry). As a color modifier, gallant implies a saturated-and-chivalrous-and-confident quality, the deep-rich color of Three-Musketeers and Cyrano-de-Bergerac swashbuckling adventure tradition. Sits at the bold-and-chivalrous end of the grid, parallel to valiant and heroic.

Sepehr
noun

The Persian word for firmament or celestial sphere — used in Persian Sufi poetry for the cosmic blue beyond the visible sky. Sepehr names the Persian astronomical concept of the seven heavens. The color refers to the Persian Sufi notion of sepehr-e jadid: a saturated, slightly cool very deep blue with the optical depth of upper-atmospheric scattering.

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

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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.

#137ee9
Original
#4188ed
Protanopia
#0076e7
Deuteranopia
#0098a8
Tritanopia
#6f6f6f
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
4.05:1
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
5.19:1

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