#870F1D

Closest named color: Dark Red (#8B0000). oklch(40.1% 0.151 22.9), rgb(135, 15, 29).

Aa

White text reads best on this color (9.92:1).

About this color

#870F1D is a dark, vivid red. In OKLCH its lightness is 40%, its chroma 0.151 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Red (#8B0000), ΔE 0.022 away. White text reads best on it, at 9.92:1.

Hue familyReds
Lightnessdark (40%)
Chromavivid (0.151)
Temperaturewarm
Nearest nameDark Red (#8B0000)
Black text2.11:1
White text9.92:1

Values

HEX#870F1D
RGBrgb(135, 15, 29)
HSLhsl(353, 80%, 29%)
OKLCHoklch(40.1% 0.151 22.9)

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 #870F1D 9.92:1 AAA Lc -95.6 Preferred for body text
Black text on #870F1D 2.11:1 Fails Lc 12.7 Not readable
#870F1D text on white 9.92:1 AAA Lc 91.2 Preferred for body text
#870F1D text on black 2.11:1 Fails Lc -11.1 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

    #FFF2F1

    oklch(97.1% 0.014 22.8)

  2. Step 100

    100

    #FFE2E0

    oklch(93.6% 0.032 22.5)

  3. Step 200

    200

    #FFCAC7

    oklch(88.5% 0.061 22.1)

  4. Step 300

    300

    #FFA4A0

    oklch(80.8% 0.109 22.5)

  5. Step 400

    400

    #FE6969

    oklch(70.7% 0.183 22.9)

  6. Step 500

    500

    #F62C40

    oklch(63% 0.232 22.9)

  7. Step 600

    600

    #D8002D

    oklch(55.7% 0.225 22.8)

  8. Step 700

    700

    #B70024

    oklch(49.2% 0.198 23)

  9. Step 800

    800

    #97001C

    oklch(42.7% 0.172 22.9)

  10. Step 900

    900 (this color)

    #870F1D

    oklch(40.1% 0.151 22.9)

  11. Step 950

    950

    #4B090E

    oklch(27% 0.096 23.1)

Export this scale for Tailwind in the Tailwind colors tool

#870F1D 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)#38331C0.167
Deuteranopia (no green cones)#554C180.152
Tritanopia (no blue cones)#9500160.029
Achromatopsia (no color)#4343430.152

Harmonies

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

Complementary

The opposite hue (180°).

  • #870F1D

    #870F1D

    oklch(40.1% 0.151 22.9)

  • #005258

    #005258

    oklch(40% 0.068 203.3)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #870F1D

    #870F1D

    oklch(40.1% 0.151 22.9)

  • #7F124F

    #7F124F

    oklch(40.1% 0.151 352.8)

  • #713500

    #713500

    oklch(40.1% 0.102 53)

Open the analogous palette in the generator

Split complementary

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

  • #870F1D

    #870F1D

    oklch(40.1% 0.151 22.9)

  • #005544

    #005544

    oklch(40.1% 0.077 173.2)

  • #004F6D

    #004F6D

    oklch(40.2% 0.083 232.5)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #870F1D

    #870F1D

    oklch(40.1% 0.151 22.9)

  • #005903

    #005903

    oklch(40.2% 0.135 142.8)

  • #174098

    #174098

    oklch(40.1% 0.152 262.8)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #870F1D

    #870F1D

    oklch(40.1% 0.151 22.9)

  • #494C00

    #494C00

    oklch(40% 0.089 112.4)

  • #005258

    #005258

    oklch(40% 0.068 203.3)

  • #4E2F90

    #4E2F90

    oklch(40% 0.152 293)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #870F1D, closest first.

Similar named colors

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

Use #870F1D 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.