#C8403F

Closest named color: Dull Red (#BB3F3F). oklch(56.7% 0.173 24.9), rgb(200, 64, 63).

Aa

White text reads best on this color (4.92:1).

About this color

#C8403F is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.173 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.026 away. White text reads best on it, at 4.92:1.

Hue familyReds
Lightnessmedium-dark (57%)
Chromavivid (0.173)
Temperaturewarm
Nearest nameDull Red (#BB3F3F)
Black text4.26:1
White text4.92:1

Values

HEX#C8403F
RGBrgb(200, 64, 63)
HSLhsl(0, 55%, 52%)
OKLCHoklch(56.7% 0.173 24.9)

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 #C8403F 4.92:1 AA Lc -78.5 Fine for body text
Black text on #C8403F 4.26:1 AA large text Lc 31.0 Non-text elements, placeholder text
#C8403F text on white 4.92:1 AA Lc 73.1 Content text, not long reading
#C8403F text on black 4.26:1 AA large text Lc -28.6 Dividers and decoration only

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 600.

  1. Step 50

    50

    #FCF3F2

    oklch(97.1% 0.01 25.1)

  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

    #EFAEA7

    oklch(81% 0.077 25.8)

  5. Step 400

    400

    #E48079

    oklch(70.8% 0.125 24.9)

  6. Step 500

    500

    #D95B57

    oklch(63.1% 0.16 24.6)

  7. Step 600

    600 (this color)

    #C8403F

    oklch(56.7% 0.173 24.9)

  8. Step 700

    700

    #A92D2E

    oklch(49.1% 0.161 25)

  9. Step 800

    800

    #892727

    oklch(42.6% 0.133 24.8)

  10. Step 900

    900

    #6E2624

    oklch(37.6% 0.103 24.9)

  11. Step 950

    950

    #411715

    oklch(26.9% 0.066 25.2)

Export this scale for Tailwind in the Tailwind colors tool

#C8403F 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)#665E3E0.185
Deuteranopia (no green cones)#887B3B0.170
Tritanopia (no blue cones)#DC19410.052
Achromatopsia (no color)#7070700.174

Harmonies

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

Complementary

The opposite hue (180°).

  • #C8403F

    #C8403F

    oklch(56.7% 0.173 24.9)

  • #008691

    #008691

    oklch(56.6% 0.097 204.9)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #C8403F

    #C8403F

    oklch(56.7% 0.173 24.9)

  • #BF3F7C

    #BF3F7C

    oklch(56.7% 0.173 354.7)

  • #B35B00

    #B35B00

    oklch(56.6% 0.14 54.8)

Open the analogous palette in the generator

Split complementary

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

  • #C8403F

    #C8403F

    oklch(56.7% 0.173 24.9)

  • #008B73

    #008B73

    oklch(56.8% 0.107 174.8)

  • #0080B2

    #0080B2

    oklch(56.6% 0.12 234.9)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #C8403F

    #C8403F

    oklch(56.7% 0.173 24.9)

  • #128F29

    #128F29

    oklch(56.7% 0.173 144.9)

  • #436EDB

    #436EDB

    oklch(56.6% 0.174 265.1)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #C8403F

    #C8403F

    oklch(56.7% 0.173 24.9)

  • #757E00

    #757E00

    oklch(56.6% 0.128 114.7)

  • #008691

    #008691

    oklch(56.6% 0.097 204.9)

  • #805BD0

    #805BD0

    oklch(56.7% 0.174 294.8)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #C8403F, closest first.

Similar named colors

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

Use #C8403F 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.