#C33D2F
Closest named color: Dull Red (#BB3F3F). oklch(55.3% 0.173 29.6), rgb(195, 61, 47).
Aa
White text reads best on this color (5.21:1).
About this color
#C33D2F is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.173 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.022 away. White text reads best on it, at 5.21:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.173) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.02:1 |
| White text | 5.21:1 |
Values
| HEX | #C33D2F |
| RGB | rgb(195, 61, 47) |
| HSL | hsl(6, 61%, 47%) |
| OKLCH | oklch(55.3% 0.173 29.6) |
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 #C33D2F | 5.21:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #C33D2F | 4.02:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #C33D2F text on white | 5.21:1 | AA | Lc 74.7 | Content text, not long reading |
| #C33D2F text on black | 4.02:1 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F9E5E1
oklch(93.7% 0.023 31.1)
-
Step 200
200
#F5CFC9
oklch(88.5% 0.044 28.5)
-
Step 300
300
#EFAEA3
oklch(80.9% 0.078 29.7)
-
Step 400
400
#E48172
oklch(70.8% 0.125 29.6)
-
Step 500
500
#D95D4D
oklch(63.2% 0.159 29.6)
-
Step 600
600 (this color)
#C33D2F
oklch(55.3% 0.173 29.6)
-
Step 700
700
#A92E23
oklch(49.1% 0.161 29.3)
-
Step 800
800
#89281E
oklch(42.6% 0.133 29.5)
-
Step 900
900
#6E271E
oklch(37.7% 0.103 29.9)
-
Step 950
950
#411812
oklch(27% 0.065 30.3)
#C33D2F 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) | #645A2C | 0.182 |
| Deuteranopia (no green cones) | #85772A | 0.166 |
| Tritanopia (no blue cones) | #D70F3B | 0.058 |
| Achromatopsia (no color) | #6D6D6D | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C33D2F
#C33D2F
oklch(55.3% 0.173 29.6)
- #008191
#008191
oklch(55.3% 0.096 209.9)
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 #C33D2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.022
- Sinopia #BB3E03 ΔE 0.033
- Dusty Red #B9484E ΔE 0.037
- Brick Orange #C14A09 ΔE 0.039
- Burnt Orange #C04E01 ΔE 0.047
- Faded Red #D3494E ΔE 0.050
- Dark Coral #CF524E ΔE 0.053
- Rusty Red #AF2F0D ΔE 0.054
Use #C33D2F 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.