#651F1B

Closest named color: Reddy Brown (#6E1005). oklch(34.9% 0.102 27), rgb(101, 31, 27).

Aa

White text reads best on this color (11.89:1).

About this color

#651F1B is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.102 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.028 away. White text reads best on it, at 11.89:1.

Hue familyReds
Lightnessdark (35%)
Chromamoderately saturated (0.102)
Temperaturewarm
Nearest nameReddy Brown (#6E1005)
Black text1.76:1
White text11.89:1

Values

HEX#651F1B
RGBrgb(101, 31, 27)
HSLhsl(3, 58%, 25%)
OKLCHoklch(34.9% 0.102 27)

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 #651F1B 11.89:1 AAA Lc -100.2 Preferred for body text
Black text on #651F1B 1.76:1 Fails Lc 7.4 Not readable
#651F1B text on white 11.89:1 AAA Lc 96.5 Preferred for body text
#651F1B text on black 1.76:1 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

    #FCF3F2

    oklch(97.1% 0.01 25.1)

  2. Step 100

    100

    #F8E5E2

    oklch(93.6% 0.021 28.3)

  3. Step 200

    200

    #F4CFCA

    oklch(88.5% 0.042 27)

  4. Step 300

    300

    #EEAEA6

    oklch(80.8% 0.076 26.9)

  5. Step 400

    400

    #E38177

    oklch(70.8% 0.123 26.7)

  6. Step 500

    500

    #D75D54

    oklch(63% 0.156 26.7)

  7. Step 600

    600

    #C33F38

    oklch(55.7% 0.169 27.1)

  8. Step 700

    700

    #A82F2B

    oklch(49.1% 0.158 26.7)

  9. Step 800

    800

    #882924

    oklch(42.7% 0.13 27.1)

  10. Step 900

    900 (this color)

    #651F1B

    oklch(34.9% 0.102 27)

  11. Step 950

    950

    #411814

    oklch(27.1% 0.065 27.8)

Export this scale for Tailwind in the Tailwind colors tool

#651F1B 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)#322D1A0.108
Deuteranopia (no green cones)#443D190.099
Tritanopia (no blue cones)#6F0D1F0.033
Achromatopsia (no color)#3737370.102

Harmonies

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

Complementary

The opposite hue (180°).

  • #651F1B

    #651F1B

    oklch(34.9% 0.102 27)

  • #00434A

    #00434A

    oklch(35% 0.06 206.6)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #651F1B

    #651F1B

    oklch(34.9% 0.102 27)

  • #611E3B

    #611E3B

    oklch(34.9% 0.102 357)

  • #5A2C00

    #5A2C00

    oklch(34.8% 0.085 56.5)

Open the analogous palette in the generator

Split complementary

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

  • #651F1B

    #651F1B

    oklch(34.9% 0.102 27)

  • #00453A

    #00453A

    oklch(34.9% 0.064 177.6)

  • #003F5D

    #003F5D

    oklch(34.9% 0.077 237.6)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #651F1B

    #651F1B

    oklch(34.9% 0.102 27)

  • #034716

    #034716

    oklch(34.7% 0.101 147)

  • #22366F

    #22366F

    oklch(35% 0.102 266.6)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #651F1B

    #651F1B

    oklch(34.9% 0.102 27)

  • #383F00

    #383F00

    oklch(34.9% 0.08 116.6)

  • #00434A

    #00434A

    oklch(35% 0.06 206.6)

  • #412C68

    #412C68

    oklch(35% 0.101 297)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #651F1B, closest first.

Similar named colors

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

Use #651F1B 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.