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Twilit Larkspur

#253387
Notes

Twilit Larkspur (#253387) is a deep blue 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 (231°, 57%, 34%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#253387
RGB
rgb(37, 51, 135)
HSL
hsl(231, 57%, 34%)
HWB
hwb(231 15% 47%)
OKLCH
oklch(36.6% 0.141 270.5)
P3
color(display-p3 0.1563 0.1984 0.5099)
HSV
hsv(231, 73%, 53%)
LAB
lab(25.29% 24.58 -48.70)
LCH
lch(25.29% 54.55 296.78)
CMYK
cmyk(73%, 62%, 0%, 47%)

Etymology

Twilit
adjective

An adjectival form of twilight, coined in the late nineteenth century. Twilit describes a color seen at twilight — the slight cooling and desaturation that low ambient light introduces. Sits in the deep-and-cool corner, lighter than somber and bluer than shadowed. Almost exclusively literary.

Larkspur
noun

Delphinium consolida and its garden cousins — the tall spired wildflower of European meadows whose name means little lark for the spurred shape of its blossoms. The color refers to a fresh larkspur stalk in cottage-garden bloom: a saturated, slightly violet-shifted blue with the matte finish of multi-petaled flowers stacked along a single stem. Cooler than cornflower, warmer than periwinkle, with the literary weight of a flower in Tennyson and Heaney alike.

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.

#253387
Original
#00418a
Protanopia
#003885
Deuteranopia
#004858
Tritanopia
#363636
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
11.04:1
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
1.90:1

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
##253387
Display P3
Display P3
color(display-p3 0.1563 0.1984 0.5099)
P3 has subtle headroomOKLCH chroma 0.141

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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