#640C20

Closest named color: Claret (#680018). oklch(32.8% 0.119 15.3), rgb(100, 12, 32).

Aa

White text reads best on this color (13.00:1).

About this color

#640C20 is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.119 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.014 away. White text reads best on it, at 13.00:1.

Hue familyReds
Lightnessdark (33%)
Chromamoderately saturated (0.119)
Temperaturewarm
Nearest nameClaret (#680018)
Black text1.61:1
White text13.00:1

Values

HEX#640C20
RGBrgb(100, 12, 32)
HSLhsl(346, 79%, 22%)
OKLCHoklch(32.8% 0.119 15.3)

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 #640C20 13.00:1 AAA Lc -101.4 Preferred for body text
Black text on #640C20 1.61:1 Fails Lc 0.0 Not readable
#640C20 text on white 13.00:1 AAA Lc 97.9 Preferred for body text
#640C20 text on black 1.61:1 Fails Lc 0.0 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

    #FDF2F3

    oklch(97% 0.012 11)

  2. Step 100

    100

    #FBE3E4

    oklch(93.6% 0.026 14.7)

  3. Step 200

    200

    #F8CDCE

    oklch(88.6% 0.049 16.5)

  4. Step 300

    300

    #F5A9AE

    oklch(80.9% 0.09 14.9)

  5. Step 400

    400

    #EC7883

    oklch(70.8% 0.143 15.5)

  6. Step 500

    500

    #E24E64

    oklch(63.1% 0.183 15.4)

  7. Step 600

    600

    #CD274C

    oklch(55.6% 0.199 15.1)

  8. Step 700

    700

    #B1163D

    oklch(49.2% 0.185 15.2)

  9. Step 800

    800

    #901832

    oklch(42.8% 0.153 15.5)

  10. Step 900

    900 (this color)

    #640C20

    oklch(32.8% 0.119 15.3)

  11. Step 950

    950

    #44131A

    oklch(27% 0.075 15.3)

Export this scale for Tailwind in the Tailwind colors tool

#640C20 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)#2725200.133
Deuteranopia (no green cones)#3D371E0.120
Tritanopia (no blue cones)#6E00150.025
Achromatopsia (no color)#3131310.120

Harmonies

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

Complementary

The opposite hue (180°).

  • #640C20

    #640C20

    oklch(32.8% 0.119 15.3)

  • #003E3E

    #003E3E

    oklch(32.9% 0.056 194.8)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #640C20

    #640C20

    oklch(32.8% 0.119 15.3)

  • #5C1142

    #5C1142

    oklch(32.9% 0.119 345.7)

  • #5A2100

    #5A2100

    oklch(32.9% 0.094 45.3)

Open the analogous palette in the generator

Split complementary

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

  • #640C20

    #640C20

    oklch(32.8% 0.119 15.3)

  • #00402C

    #00402C

    oklch(32.9% 0.069 164.9)

  • #003B4D

    #003B4D

    oklch(32.8% 0.062 225.6)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #640C20

    #640C20

    oklch(32.8% 0.119 15.3)

  • #1C3F00

    #1C3F00

    oklch(32.8% 0.096 135.3)

  • #00336B

    #00336B

    oklch(32.7% 0.11 255.5)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #640C20

    #640C20

    oklch(32.8% 0.119 15.3)

  • #3A3700

    #3A3700

    oklch(32.9% 0.07 106.3)

  • #003E3E

    #003E3E

    oklch(32.9% 0.056 194.8)

  • #32266E

    #32266E

    oklch(32.8% 0.119 285.4)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #640C20, closest first.

Similar named colors

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

Use #640C20 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.