#C6443F

Closest named color: Dull Red (#BB3F3F). oklch(56.8% 0.167 26.1), rgb(198, 68, 63).

Aa

White text reads best on this color (4.88:1).

About this color

#C6443F is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.167 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.025 away. White text reads best on it, at 4.88:1.

Hue familyReds
Lightnessmedium-dark (57%)
Chromavivid (0.167)
Temperaturewarm
Nearest nameDull Red (#BB3F3F)
Black text4.29:1
White text4.88:1

Values

HEX#C6443F
RGBrgb(198, 68, 63)
HSLhsl(2, 54%, 51%)
OKLCHoklch(56.8% 0.167 26.1)

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 #C6443F 4.88:1 AA Lc -78.3 Fine for body text
Black text on #C6443F 4.29:1 AA large text Lc 31.2 Non-text elements, placeholder text
#C6443F text on white 4.88:1 AA Lc 72.9 Content text, not long reading
#C6443F text on black 4.29:1 AA large text Lc -28.8 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

    #F8E5E2

    oklch(93.6% 0.021 28.3)

  3. Step 200

    200

    #F4CFCB

    oklch(88.5% 0.042 25.3)

  4. Step 300

    300

    #EDAEA7

    oklch(80.8% 0.075 26)

  5. Step 400

    400

    #E28279

    oklch(70.8% 0.12 26.2)

  6. Step 500

    500

    #D65E56

    oklch(63% 0.153 26.2)

  7. Step 600

    600 (this color)

    #C6443F

    oklch(56.8% 0.167 26.1)

  8. Step 700

    700

    #A7312E

    oklch(49.2% 0.155 26.1)

  9. Step 800

    800

    #872A27

    oklch(42.6% 0.128 26)

  10. Step 900

    900

    #6D2824

    oklch(37.8% 0.099 26.2)

  11. Step 950

    950

    #401815

    oklch(26.9% 0.063 26.5)

Export this scale for Tailwind in the Tailwind colors tool

#C6443F 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)#675F3D0.178
Deuteranopia (no green cones)#887B3B0.163
Tritanopia (no blue cones)#D923440.052
Achromatopsia (no color)#7171710.168

Harmonies

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

Complementary

The opposite hue (180°).

  • #C6443F

    #C6443F

    oklch(56.8% 0.167 26.1)

  • #008793

    #008793

    oklch(56.9% 0.097 205.8)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #C6443F

    #C6443F

    oklch(56.8% 0.167 26.1)

  • #BE427A

    #BE427A

    oklch(56.8% 0.167 355.9)

  • #B25D00

    #B25D00

    oklch(56.8% 0.138 56.4)

Open the analogous palette in the generator

Split complementary

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

  • #C6443F

    #C6443F

    oklch(56.8% 0.167 26.1)

  • #008B75

    #008B75

    oklch(56.9% 0.106 176.3)

  • #0080B5

    #0080B5

    oklch(56.8% 0.123 236.4)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #C6443F

    #C6443F

    oklch(56.8% 0.167 26.1)

  • #138F31

    #138F31

    oklch(56.8% 0.167 146)

  • #486FD8

    #486FD8

    oklch(56.9% 0.167 265.9)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #C6443F

    #C6443F

    oklch(56.8% 0.167 26.1)

  • #747F00

    #747F00

    oklch(56.8% 0.129 115.7)

  • #008793

    #008793

    oklch(56.9% 0.097 205.8)

  • #825CCC

    #825CCC

    oklch(56.8% 0.167 296.3)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #C6443F, closest first.

Similar named colors

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

Use #C6443F 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.