#C33C28
Closest named color: Dull Red (#BB3F3F). oklch(55.1% 0.175 31.4), rgb(195, 60, 40).
Aa
White text reads best on this color (5.25:1).
About this color
#C33C28 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.175 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.027 away. White text reads best on it, at 5.25:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #C33C28 |
| RGB | rgb(195, 60, 40) |
| HSL | hsl(8, 66%, 46%) |
| OKLCH | oklch(55.1% 0.175 31.4) |
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 #C33C28 | 5.25:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #C33C28 | 3.99:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #C33C28 text on white | 5.25:1 | AA | Lc 74.9 | Content text, not long reading |
| #C33C28 text on black | 3.99:1 | AA large text | Lc -26.8 | 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
#F9E5E1
oklch(93.7% 0.023 31.1)
-
Step 200
200
#F5CFC8
oklch(88.5% 0.044 30.2)
-
Step 300
300
#EFAEA2
oklch(80.9% 0.079 30.6)
-
Step 400
400
#E4816F
oklch(70.7% 0.126 31.3)
-
Step 500
500
#D95D48
oklch(63.1% 0.16 31.6)
-
Step 600
600 (this color)
#C33C28
oklch(55.1% 0.175 31.4)
-
Step 700
700
#A92E1C
oklch(49% 0.162 31.4)
-
Step 800
800
#8A281A
oklch(42.8% 0.135 31.2)
-
Step 900
900
#6F271B
oklch(37.8% 0.105 31.7)
-
Step 950
950
#411811
oklch(27% 0.066 31.5)
#C33C28 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) | #645924 | 0.183 |
| Deuteranopia (no green cones) | #857722 | 0.168 |
| Tritanopia (no blue cones) | #D70839 | 0.061 |
| Achromatopsia (no color) | #6C6C6C | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C33C28
#C33C28
oklch(55.1% 0.175 31.4)
- #008092
#008092
oklch(55% 0.096 211.8)
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 #C33C28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.027
- Sinopia #BB3E03 ΔE 0.027
- Brick Orange #C14A09 ΔE 0.035
- Dusty Red #B9484E ΔE 0.043
- Burnt Orange #C04E01 ΔE 0.044
- Rusty Red #AF2F0D ΔE 0.052
- Faded Red #D3494E ΔE 0.054
- Burnt Siena #B75203 ΔE 0.054
Use #C33C28 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.