#CF2800

Closest named color: Sinopia (#BB3E03). oklch(55.3% 0.206 32.7), rgb(207, 40, 0).

Aa

White text reads best on this color (5.30:1).

About this color

#CF2800 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.206 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.044 away. White text reads best on it, at 5.30:1.

Hue familyReds
Lightnessmedium-dark (55%)
Chromavivid (0.206)
Temperaturewarm
Nearest nameSinopia (#BB3E03)
Black text3.95:1
White text5.30:1

Values

HEX#CF2800
RGBrgb(207, 40, 0)
HSLhsl(12, 100%, 41%)
OKLCHoklch(55.3% 0.206 32.7)

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 #CF2800 5.30:1 AA Lc -79.9 Fine for body text
Black text on #CF2800 3.95:1 AA large text Lc 29.5 Dividers and decoration only
#CF2800 text on white 5.30:1 AA Lc 74.5 Content text, not long reading
#CF2800 text on black 3.95:1 AA large text Lc -27.2 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

    #FEF3F0

    oklch(97.2% 0.013 35.7)

  2. Step 100

    100

    #FBE4DF

    oklch(93.6% 0.026 32.2)

  3. Step 200

    200

    #F9CEC4

    oklch(88.6% 0.051 33.3)

  4. Step 300

    300

    #F6AB9B

    oklch(80.9% 0.092 32.5)

  5. Step 400

    400

    #EE7A63

    oklch(70.7% 0.148 32.5)

  6. Step 500

    500

    #E55035

    oklch(63.1% 0.19 32.5)

  7. Step 600

    600 (this color)

    #CF2800

    oklch(55.3% 0.206 32.7)

  8. Step 700

    700

    #B12100

    oklch(49.2% 0.183 32.8)

  9. Step 800

    800

    #921A01

    oklch(42.8% 0.158 32.7)

  10. Step 900

    900

    #751F0E

    oklch(37.7% 0.123 33)

  11. Step 950

    950

    #45140B

    oklch(27% 0.078 32.5)

Export this scale for Tailwind in the Tailwind colors tool

#CF2800 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)#6054000.218
Deuteranopia (no green cones)#8878000.194
Tritanopia (no blue cones)#E500240.050
Achromatopsia (no color)#6B6B6B0.207

Harmonies

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

Complementary

The opposite hue (180°).

  • #CF2800

    #CF2800

    oklch(55.3% 0.206 32.7)

  • #008194

    #008194

    oklch(55.4% 0.097 212.6)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #CF2800

    #CF2800

    oklch(55.3% 0.206 32.7)

  • #CA2067

    #CA2067

    oklch(55.3% 0.206 2.9)

  • #A55F00

    #A55F00

    oklch(55.3% 0.126 63)

Open the analogous palette in the generator

Split complementary

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

  • #CF2800

    #CF2800

    oklch(55.3% 0.206 32.7)

  • #008577

    #008577

    oklch(55.3% 0.099 182.1)

  • #0079B9

    #0079B9

    oklch(55.3% 0.133 242.7)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #CF2800

    #CF2800

    oklch(55.3% 0.206 32.7)

  • #008947

    #008947

    oklch(55.2% 0.143 152.8)

  • #4F5FE8

    #4F5FE8

    oklch(55.4% 0.206 272.7)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #CF2800

    #CF2800

    oklch(55.3% 0.206 32.7)

  • #647E00

    #647E00

    oklch(55.2% 0.135 122.9)

  • #008194

    #008194

    oklch(55.4% 0.097 212.6)

  • #8C47D3

    #8C47D3

    oklch(55.3% 0.206 302.8)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #CF2800, closest first.

No curated palette has a color within ΔE 0.04 of #CF2800.

Similar named colors

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

Use #CF2800 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.