#81021F

Closest named color: Wine Red (#7B0323). oklch(38.3% 0.152 19.5), rgb(129, 2, 31).

Aa

White text reads best on this color (10.70:1).

About this color

#81021F is a dark, vivid red. In OKLCH its lightness is 38%, its chroma 0.152 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Wine Red (#7B0323), ΔE 0.015 away. White text reads best on it, at 10.70:1.

Hue familyReds
Lightnessdark (38%)
Chromavivid (0.152)
Temperaturewarm
Nearest nameWine Red (#7B0323)
Black text1.96:1
White text10.70:1

Values

HEX#81021F
RGBrgb(129, 2, 31)
HSLhsl(346, 97%, 26%)
OKLCHoklch(38.3% 0.152 19.5)

Contrast

WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.

PairWCAG 2ResultAPCAAPCA guidance
White text on #81021F 10.70:1 AAA Lc -96.8 Preferred for body text
Black text on #81021F 1.96:1 Fails Lc 11.3 Not readable
#81021F text on white 10.70:1 AAA Lc 92.6 Preferred for body text
#81021F text on black 1.96:1 Fails Lc -9.8 Not readable

Tints and shades

A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.

  1. Step 50

    50

    #FFF2F2

    oklch(97.1% 0.014 17.4)

  2. Step 100

    100

    #FFE2E1

    oklch(93.6% 0.032 20.1)

  3. Step 200

    200

    #FFCAC9

    oklch(88.5% 0.06 19.6)

  4. Step 300

    300

    #FFA4A4

    oklch(80.9% 0.108 19.7)

  5. Step 400

    400

    #FE6871

    oklch(70.8% 0.183 19.5)

  6. Step 500

    500

    #F6294C

    oklch(63% 0.233 19.3)

  7. Step 600

    600

    #D70039

    oklch(55.6% 0.223 19.6)

  8. Step 700

    700

    #B6002F

    oklch(49.1% 0.197 19.5)

  9. Step 800

    800

    #960025

    oklch(42.6% 0.171 19.5)

  10. Step 900

    900 (this color)

    #81021F

    oklch(38.3% 0.152 19.5)

  11. Step 950

    950

    #4B0812

    oklch(27% 0.097 19.3)

Export this scale for Tailwind in the Tailwind colors tool

#81021F with color blindness

Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.

VisionSeen asShift (ΔE)
Protanopia (no red cones)#312E1F0.171
Deuteranopia (no green cones)#4F471B0.154
Tritanopia (no blue cones)#8F00110.034
Achromatopsia (no color)#3E3E3E0.153

Harmonies

Hue rotations in OKLCH that keep this color's lightness and chroma.

Complementary

The opposite hue (180°).

  • #81021F

    #81021F

    oklch(38.3% 0.152 19.5)

  • #004D50

    #004D50

    oklch(38.2% 0.065 199.3)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #81021F

    #81021F

    oklch(38.3% 0.152 19.5)

  • #780A4F

    #780A4F

    oklch(38.3% 0.152 349.5)

  • #6C2F00

    #6C2F00

    oklch(38.3% 0.101 50)

Open the analogous palette in the generator

Split complementary

The two hues beside the complement (150° and 210°).

  • #81021F

    #81021F

    oklch(38.3% 0.152 19.5)

  • #00503C

    #00503C

    oklch(38.3% 0.077 168.9)

  • #004A63

    #004A63

    oklch(38.3% 0.076 229.2)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #81021F

    #81021F

    oklch(38.3% 0.152 19.5)

  • #165100

    #165100

    oklch(38.2% 0.122 139.6)

  • #003C92

    #003C92

    oklch(38.3% 0.153 259.6)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #81021F

    #81021F

    oklch(38.3% 0.152 19.5)

  • #474600

    #474600

    oklch(38.3% 0.083 108.8)

  • #004D50

    #004D50

    oklch(38.2% 0.065 199.3)

  • #452B8D

    #452B8D

    oklch(38.2% 0.153 289.3)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #81021F, closest first.

Similar named colors

The eight closest entries in our named color list, with their ΔE distance.

Use #81021F in your product

Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.