#641C27

Closest named color: Claret (#680018). oklch(34.6% 0.103 15.6), rgb(100, 28, 39).

Aa

White text reads best on this color (12.08:1).

About this color

#641C27 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.103 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.034 away. White text reads best on it, at 12.08:1.

Hue familyReds
Lightnessdark (35%)
Chromamoderately saturated (0.103)
Temperaturewarm
Nearest nameClaret (#680018)
Black text1.73:1
White text12.08:1

Values

HEX#641C27
RGBrgb(100, 28, 39)
HSLhsl(351, 56%, 25%)
OKLCHoklch(34.6% 0.103 15.6)

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 #641C27 12.08:1 AAA Lc -100.4 Preferred for body text
Black text on #641C27 1.73:1 Fails Lc 0.0 Not readable
#641C27 text on white 12.08:1 AAA Lc 96.8 Preferred for body text
#641C27 text on black 1.73:1 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

    #FCF3F3

    oklch(97.1% 0.01 17.3)

  2. Step 100

    100

    #F9E4E5

    oklch(93.6% 0.023 14.3)

  3. Step 200

    200

    #F4CED0

    oklch(88.4% 0.043 14.4)

  4. Step 300

    300

    #EEADB0

    oklch(80.9% 0.077 15.8)

  5. Step 400

    400

    #E37F87

    oklch(70.8% 0.123 15.6)

  6. Step 500

    500

    #D85A69

    oklch(63.2% 0.158 15.6)

  7. Step 600

    600

    #C33B51

    oklch(55.7% 0.172 15.5)

  8. Step 700

    700

    #A82B41

    oklch(49.1% 0.16 15.7)

  9. Step 800

    800

    #882636

    oklch(42.6% 0.132 15.5)

  10. Step 900

    900 (this color)

    #641C27

    oklch(34.6% 0.103 15.6)

  11. Step 950

    950

    #41171C

    oklch(27.1% 0.065 15.3)

Export this scale for Tailwind in the Tailwind colors tool

#641C27 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)#2E2D270.114
Deuteranopia (no green cones)#413C250.105
Tritanopia (no blue cones)#6E0C200.026
Achromatopsia (no color)#3636360.104

Harmonies

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

Complementary

The opposite hue (180°).

  • #641C27

    #641C27

    oklch(34.6% 0.103 15.6)

  • #004343

    #004343

    oklch(34.7% 0.059 194.8)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #641C27

    #641C27

    oklch(34.6% 0.103 15.6)

  • #5D1E45

    #5D1E45

    oklch(34.6% 0.103 345.7)

  • #612400

    #612400

    oklch(34.6% 0.099 45.2)

Open the analogous palette in the generator

Split complementary

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

  • #641C27

    #641C27

    oklch(34.6% 0.103 15.6)

  • #004530

    #004530

    oklch(34.6% 0.073 165.2)

  • #004053

    #004053

    oklch(34.6% 0.066 225.3)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #641C27

    #641C27

    oklch(34.6% 0.103 15.6)

  • #1E4400

    #1E4400

    oklch(34.5% 0.102 135.6)

  • #0C396D

    #0C396D

    oklch(34.7% 0.102 255.3)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #641C27

    #641C27

    oklch(34.6% 0.103 15.6)

  • #3F3B00

    #3F3B00

    oklch(34.5% 0.073 105.4)

  • #004343

    #004343

    oklch(34.7% 0.059 194.8)

  • #362E6C

    #362E6C

    oklch(34.6% 0.104 285.5)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #641C27, closest first.

Similar named colors

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

Use #641C27 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.