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Indomitable Tatra

#6b238a
Notes

Indomitable Tatra (#6B238A) is a deep violet 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 (282°, 60%, 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#6b238a
RGB
rgb(107, 35, 138)
HSL
hsl(282, 60%, 34%)
HWB
hwb(282 14% 46%)
OKLCH
oklch(41.6% 0.167 313.5)
P3
color(display-p3 0.3870 0.1565 0.5222)
HSV
hsv(282, 75%, 54%)
LAB
lab(29.82% 48.00 -42.87)
LCH
lch(29.82% 64.36 318.23)
CMYK
cmyk(22%, 75%, 0%, 46%)

Etymology

Indomitable
adjective

Latin indomitābilis, unconquerable — derived from domāre (to tame). As a color modifier, indomitable implies a saturated-and-unconquerable-and-fierce quality where the hue resists any attempt to subdue or modulate its presence. Sits at the bold-and-resilient end of the grid, parallel to unyielding and adamant.

Tatra
noun

Carpathian high-mountain range straddling Poland and Slovakia — its alpine tatran peaks above 2,000m support some of Europe's last Soldanella alpina and Gentiana clusii deep-violet alpine flora. Tatra color refers to a Soldanella alpina corolla on a High Tatras alpine ledge: a saturated, slightly cool deep violet with the velvet finish of fresh alpine snowbell petal under high-altitude light.

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.

#6b238a
Original
#00428d
Protanopia
#1a4888
Deuteranopia
#683a54
Tritanopia
#3a3a3a
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
9.41:1
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
2.23:1

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
##6B238A
Display P3
Display P3
color(display-p3 0.3870 0.1565 0.5222)
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.

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