colors
Back to gallery

Poised Larkspur

#637be9
Notes

Poised Larkspur (#637BE9) is a true blue with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (229°, 75%, 65%) 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
#637be9
RGB
rgb(99, 123, 233)
HSL
hsl(229, 75%, 65%)
HWB
hwb(229 39% 9%)
OKLCH
oklch(61.9% 0.167 271.5)
P3
color(display-p3 0.4069 0.4796 0.8852)
HSV
hsv(229, 58%, 91%)
LAB
lab(54.76% 23.40 -58.50)
LCH
lch(54.76% 63.00 291.80)
CMYK
cmyk(58%, 47%, 0%, 9%)

Etymology

Poised
adjective

Old French peser, to weigh — past-participle of poise. As a color modifier, poised implies a saturated-and-balanced-and-confident quality where the hue holds its position with elegant equilibrium. Sits at the bold-and-confident end of the grid, parallel to centered and composed.

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.

#637be9
Original
#4689ed
Protanopia
#317de7
Deuteranopia
#0094a7
Tritanopia
#7e7e7e
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
3.79:1
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
5.54:1

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
##637BE9
Display P3
Display P3
color(display-p3 0.4069 0.4796 0.8852)
P3 has subtle headroomOKLCH chroma 0.167

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.

Related Colors

Canvas