#C3333B
Closest named color: Dull Red (#BB3F3F). oklch(54.5% 0.18 22.8), rgb(195, 51, 59).
Aa
White text reads best on this color (5.44:1).
About this color
#C3333B is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.180 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.021 away. White text reads best on it, at 5.44:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.180) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.85:1 |
| White text | 5.44:1 |
Values
| HEX | #C3333B |
| RGB | rgb(195, 51, 59) |
| HSL | hsl(357, 59%, 48%) |
| OKLCH | oklch(54.5% 0.18 22.8) |
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 #C3333B | 5.44:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #C3333B | 3.85:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #C3333B text on white | 5.44:1 | AA | Lc 75.8 | Fine for body text |
| #C3333B text on black | 3.85:1 | AA large text | Lc -25.9 | 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
#F9E4E3
oklch(93.5% 0.023 20.9)
-
Step 200
200
#F6CECB
oklch(88.5% 0.046 23.1)
-
Step 300
300
#F1ACA8
oklch(80.9% 0.082 22.8)
-
Step 400
400
#E67E7A
oklch(70.7% 0.129 23.2)
-
Step 500
500
#DC5859
oklch(63.2% 0.166 22.7)
-
Step 600
600 (this color)
#C3333B
oklch(54.5% 0.18 22.8)
-
Step 700
700
#AB2830
oklch(49.1% 0.167 23)
-
Step 800
800
#8B2329
oklch(42.6% 0.139 22.4)
-
Step 900
900
#702425
oklch(37.7% 0.108 23.1)
-
Step 950
950
#421616
oklch(27% 0.069 22.8)
#C3333B 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) | #5D563A | 0.196 |
| Deuteranopia (no green cones) | #817536 | 0.180 |
| Tritanopia (no blue cones) | #D60037 | 0.044 |
| Achromatopsia (no color) | #6A6A6A | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C3333B
#C3333B
oklch(54.5% 0.18 22.8)
- #007F88
#007F88
oklch(54.4% 0.093 203.5)
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 #C3333B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.021
- Dusty Red #B9484E ΔE 0.036
- Cherry #CF0234 ΔE 0.037
- Lipstick Red #C0022F ΔE 0.042
- Ruby #CA0147 ΔE 0.047
- Scarlet #BE0119 ΔE 0.048
- Rose Red #BE013C ΔE 0.048
- Firebrick #B22222 ΔE 0.050
Use #C3333B 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.