#651C1B

Closest named color: Reddy Brown (#6E1005). oklch(34.5% 0.105 25.2), rgb(101, 28, 27).

Aa

White text reads best on this color (12.10:1).

About this color

#651C1B is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.105 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.027 away. White text reads best on it, at 12.10:1.

Hue familyReds
Lightnessdark (35%)
Chromamoderately saturated (0.105)
Temperaturewarm
Nearest nameReddy Brown (#6E1005)
Black text1.73:1
White text12.10:1

Values

HEX#651C1B
RGBrgb(101, 28, 27)
HSLhsl(1, 58%, 25%)
OKLCHoklch(34.5% 0.105 25.2)

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 #651C1B 12.10:1 AAA Lc -100.4 Preferred for body text
Black text on #651C1B 1.73:1 Fails Lc 0.0 Not readable
#651C1B text on white 12.10:1 AAA Lc 96.8 Preferred for body text
#651C1B 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

    #FDF3F2

    oklch(97.2% 0.011 24.3)

  2. Step 100

    100

    #F9E4E2

    oklch(93.5% 0.023 24.1)

  3. Step 200

    200

    #F5CFCB

    oklch(88.6% 0.043 25.1)

  4. Step 300

    300

    #EFADA7

    oklch(80.8% 0.079 24.8)

  5. Step 400

    400

    #E57F78

    oklch(70.7% 0.127 24.9)

  6. Step 500

    500

    #DA5B55

    oklch(63.2% 0.161 25.5)

  7. Step 600

    600

    #C53B3A

    oklch(55.6% 0.175 25.3)

  8. Step 700

    700

    #AA2C2C

    oklch(49.2% 0.163 25.5)

  9. Step 800

    800

    #8A2626

    oklch(42.7% 0.135 25)

  10. Step 900

    900 (this color)

    #651C1B

    oklch(34.5% 0.105 25.2)

  11. Step 950

    950

    #411715

    oklch(26.9% 0.066 25.2)

Export this scale for Tailwind in the Tailwind colors tool

#651C1B 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)#302C1A0.113
Deuteranopia (no green cones)#423C190.105
Tritanopia (no blue cones)#70071D0.032
Achromatopsia (no color)#3636360.106

Harmonies

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

Complementary

The opposite hue (180°).

  • #651C1B

    #651C1B

    oklch(34.5% 0.105 25.2)

  • #004248

    #004248

    oklch(34.6% 0.059 205)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #651C1B

    #651C1B

    oklch(34.5% 0.105 25.2)

  • #601B3C

    #601B3C

    oklch(34.4% 0.106 354.7)

  • #5A2B00

    #5A2B00

    oklch(34.6% 0.085 55.3)

Open the analogous palette in the generator

Split complementary

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

  • #651C1B

    #651C1B

    oklch(34.5% 0.105 25.2)

  • #004437

    #004437

    oklch(34.5% 0.065 174.6)

  • #003E5A

    #003E5A

    oklch(34.4% 0.074 236.1)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #651C1B

    #651C1B

    oklch(34.5% 0.105 25.2)

  • #034610

    #034610

    oklch(34.4% 0.105 145.2)

  • #1E356F

    #1E356F

    oklch(34.6% 0.105 265.1)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #651C1B

    #651C1B

    oklch(34.5% 0.105 25.2)

  • #383E00

    #383E00

    oklch(34.6% 0.079 115.7)

  • #004248

    #004248

    oklch(34.6% 0.059 205)

  • #3F2A69

    #3F2A69

    oklch(34.5% 0.106 295.7)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #651C1B, closest first.

Similar named colors

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

Use #651C1B 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.