#C64B31
Closest named color: Brick Orange (#C14A09). oklch(57.5% 0.163 33.6), rgb(198, 75, 49).
Aa
White text reads best on this color (4.71:1).
About this color
#C64B31 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.163 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Orange (#C14A09), ΔE 0.027 away. White text reads best on it, at 4.71:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.163) |
| Temperature | warm |
| Nearest name | Brick Orange (#C14A09) |
| Black text | 4.45:1 |
| White text | 4.71:1 |
Values
| HEX | #C64B31 |
| RGB | rgb(198, 75, 49) |
| HSL | hsl(10, 60%, 48%) |
| OKLCH | oklch(57.5% 0.163 33.6) |
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.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #C64B31 | 4.71:1 | AA | Lc -77.3 | Fine for body text |
| Black text on #C64B31 | 4.45:1 | AA large text | Lc 32.2 | Non-text elements, placeholder text |
| #C64B31 text on white | 4.71:1 | AA | Lc 71.9 | Content text, not long reading |
| #C64B31 text on black | 4.45:1 | AA large text | Lc -29.8 | 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.
-
Step 50
50
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E1
oklch(93.6% 0.022 31.8)
-
Step 200
200
#F3D0C8
oklch(88.5% 0.041 33)
-
Step 300
300
#ECB0A2
oklch(80.9% 0.073 33.5)
-
Step 400
400
#DF8470
oklch(70.6% 0.117 33.3)
-
Step 500
500
#D46249
oklch(63.1% 0.15 33.8)
-
Step 600
600 (this color)
#C64B31
oklch(57.5% 0.163 33.6)
-
Step 700
700
#A5351E
oklch(49.1% 0.152 33.4)
-
Step 800
800
#862D1B
oklch(42.7% 0.126 33.3)
-
Step 900
900
#6C2A1C
oklch(37.7% 0.098 33.6)
-
Step 950
950
#3F1911
oklch(26.8% 0.062 33.3)
#C64B31 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.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #6D622D | 0.167 |
| Deuteranopia (no green cones) | #8C7E2D | 0.153 |
| Tritanopia (no blue cones) | #DA2D46 | 0.063 |
| Achromatopsia (no color) | #737373 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C64B31
#C64B31
oklch(57.5% 0.163 33.6)
- #00889D
#00889D
oklch(57.6% 0.101 213.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #C64B31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Orange #C14A09 ΔE 0.027
- Burnt Orange #C04E01 ΔE 0.033
- Rust Orange #C45508 ΔE 0.037
- Dark Coral #CF524E ΔE 0.037
- Dull Red #BB3F3F ΔE 0.041
- Sinopia #BB3E03 ΔE 0.041
- Faded Red #D3494E ΔE 0.042
- Dusty Red #B9484E ΔE 0.045
Use #C64B31 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.