#C83B3A
Closest named color: Dull Red (#BB3F3F). oklch(56.1% 0.178 25.3), rgb(200, 59, 58).
Aa
White text reads best on this color (5.06:1).
About this color
#C83B3A is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.178 and its hue 25°. 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 5.06:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.178) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.14:1 |
| White text | 5.06:1 |
Values
| HEX | #C83B3A |
| RGB | rgb(200, 59, 58) |
| HSL | hsl(0, 56%, 51%) |
| OKLCH | oklch(56.1% 0.178 25.3) |
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 #C83B3A | 5.06:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #C83B3A | 4.14:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #C83B3A text on white | 5.06:1 | AA | Lc 73.8 | Content text, not long reading |
| #C83B3A text on black | 4.14:1 | AA large text | Lc -27.9 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#F9E4E2
oklch(93.5% 0.023 24.1)
-
Step 200
200
#F5CECA
oklch(88.4% 0.045 24.9)
-
Step 300
300
#F0ADA6
oklch(80.9% 0.08 25.7)
-
Step 400
400
#E67F77
oklch(70.8% 0.128 25.5)
-
Step 500
500
#DB5954
oklch(63.1% 0.164 25.1)
-
Step 600
600 (this color)
#C83B3A
oklch(56.1% 0.178 25.3)
-
Step 700
700
#AB2A2B
oklch(49.2% 0.166 25.4)
-
Step 800
800
#8B2525
oklch(42.8% 0.137 25.1)
-
Step 900
900
#702522
oklch(37.8% 0.107 25.8)
-
Step 950
950
#421715
oklch(27.1% 0.067 25.3)
#C83B3A 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) | #635B38 | 0.192 |
| Deuteranopia (no green cones) | #867A35 | 0.177 |
| Tritanopia (no blue cones) | #DC053C | 0.053 |
| Achromatopsia (no color) | #6E6E6E | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C83B3A
#C83B3A
oklch(56.1% 0.178 25.3)
- #008490
#008490
oklch(56% 0.096 206)
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 #C83B3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.025
- Dusty Red #B9484E ΔE 0.036
- Faded Red #D3494E ΔE 0.038
- Dark Coral #CF524E ΔE 0.045
- Cherry #CF0234 ΔE 0.047
- Crimson #DC143C ΔE 0.048
- Sinopia #BB3E03 ΔE 0.049
- Brick Orange #C14A09 ΔE 0.052
Use #C83B3A 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.