#C83529
Closest named color: Dull Red (#BB3F3F). oklch(55.3% 0.186 29.1), rgb(200, 53, 41).
Aa
White text reads best on this color (5.25:1).
About this color
#C83529 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.186 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.031 away. White text reads best on it, at 5.25:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.186) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #C83529 |
| RGB | rgb(200, 53, 41) |
| HSL | hsl(5, 66%, 47%) |
| OKLCH | oklch(55.3% 0.186 29.1) |
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.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #C83529 | 5.25:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #C83529 | 3.99:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #C83529 text on white | 5.25:1 | AA | Lc 74.7 | Content text, not long reading |
| #C83529 text on black | 3.99:1 | AA large text | Lc -27.0 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E1
oklch(93.6% 0.025 26.9)
-
Step 200
200
#F6CEC8
oklch(88.4% 0.046 28)
-
Step 300
300
#F2ADA2
oklch(81% 0.083 29.1)
-
Step 400
400
#E87E6F
oklch(70.8% 0.134 29.3)
-
Step 500
500
#DE5848
oklch(63.2% 0.171 29.5)
-
Step 600
600 (this color)
#C83529
oklch(55.3% 0.186 29.1)
-
Step 700
700
#AD261D
oklch(49% 0.173 29)
-
Step 800
800
#8D231A
oklch(42.8% 0.143 29.2)
-
Step 900
900
#71231B
oklch(37.6% 0.112 29.2)
-
Step 950
950
#431611
oklch(27.1% 0.071 28.9)
#C83529 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) | #625726 | 0.197 |
| Deuteranopia (no green cones) | #867822 | 0.181 |
| Tritanopia (no blue cones) | #DC0034 | 0.052 |
| Achromatopsia (no color) | #6C6C6C | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C83529
#C83529
oklch(55.3% 0.186 29.1)
- #008190
#008190
oklch(55.2% 0.095 209)
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 #C83529, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.031
- Sinopia #BB3E03 ΔE 0.038
- Cherry #CF0234 ΔE 0.045
- Brick Orange #C14A09 ΔE 0.045
- Dusty Red #B9484E ΔE 0.047
- Faded Red #D3494E ΔE 0.051
- Crimson #DC143C ΔE 0.052
- Scarlet #BE0119 ΔE 0.053
Use #C83529 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.