colors
Back to gallery

Pure Iconostasis

#643897
Notes

Pure Iconostasis (#643897) is a true indigo with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (268°, 46%, 41%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#643897
RGB
rgb(100, 56, 151)
HSL
hsl(268, 46%, 41%)
HWB
hwb(268 22% 41%)
OKLCH
oklch(44.4% 0.150 301.9)
P3
color(display-p3 0.3685 0.2279 0.5720)
HSV
hsv(268, 63%, 59%)
LAB
lab(33.50% 39.22 -44.97)
LCH
lch(33.50% 59.67 311.09)
CMYK
cmyk(34%, 63%, 0%, 41%)

Etymology

Pure
adjective

Latin purus, clean, unmixed — applied to color since antiquity for hues that contain only one pigment without dilution by white, black, or another color. Pure red is the textbook ideal: high saturation, mid lightness, no shift. Sits at the bold-bucket center, parallel to true and strong.

Iconostasis
noun

Russian and Greek Orthodox icon screen — the multi-tier wall of religious icons that separates the naos (nave) from the bema (sanctuary) in an Orthodox church, traditionally rendered in deep-violet-and-gold-leaf. Iconostasis color refers to a 14th-century Novgorod-school iconostasis royal-doors panel: a saturated, slightly cool deep violet with the matte finish of egg-tempera ultramarine-and-cinnabar on gilt gesso ground.

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.

#643897
Original
#004e9a
Protanopia
#1a4e95
Deuteranopia
#5a4c62
Tritanopia
#484848
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
8.22:1
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
2.55:1

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
##643897
Display P3
Display P3
color(display-p3 0.3685 0.2279 0.5720)
P3 has subtle headroomOKLCH chroma 0.150

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