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Severe Ifrita

#133f8e
Notes

Severe Ifrita (#133F8E) is a deep azure with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (219°, 76%, 32%) places it in the highly saturated band at a dark 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#133f8e
RGB
rgb(19, 63, 142)
HSL
hsl(219, 76%, 32%)
HWB
hwb(219 7% 44%)
OKLCH
oklch(38.9% 0.140 261.1)
P3
color(display-p3 0.1241 0.2434 0.5371)
HSV
hsv(219, 87%, 56%)
LAB
lab(28.50% 17.04 -47.85)
LCH
lch(28.50% 50.79 289.60)
CMYK
cmyk(87%, 56%, 0%, 44%)

Etymology

Severe
adjective

Latin sevērus, strict / serious. As a color modifier, severe implies a deep-and-uncompromising-formal quality, the dark plain-textile color of Cistercian and Calvinist anti-decorative interior aesthetic. Sits at the deep-and-formal end of the grid, parallel to austere and stern in tone.

Ifrita
noun

Ifrita kowaldi, the blue-capped ifrita — a small Papua New Guinea songbird with saturated deep-blue crown plumage and (uniquely among birds) toxic skin and feathers from a sequestered batrachotoxin diet. The color refers to a male ifrita's crown: a saturated, slightly cool deep blue with the satin finish of structurally-colored small-bird feathers.

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.

#133f8e
Original
#004991
Protanopia
#003e8c
Deuteranopia
#005360
Tritanopia
#3b3b3b
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
9.86:1
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
2.13:1

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
##133F8E
Display P3
Display P3
color(display-p3 0.1241 0.2434 0.5371)
P3 has subtle headroomOKLCH chroma 0.140

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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