#C43C31
Closest named color: Dull Red (#BB3F3F). oklch(55.4% 0.174 28.6), rgb(196, 60, 49).
Aa
White text reads best on this color (5.20:1).
About this color
#C43C31 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.174 and its hue 29°. 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 5.20:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #C43C31 |
| RGB | rgb(196, 60, 49) |
| HSL | hsl(4, 60%, 48%) |
| OKLCH | oklch(55.4% 0.174 28.6) |
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 #C43C31 | 5.20:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #C43C31 | 4.03:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #C43C31 text on white | 5.20:1 | AA | Lc 74.6 | Content text, not long reading |
| #C43C31 text on black | 4.03:1 | AA large text | Lc -27.1 | 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
#EFAEA4
oklch(80.9% 0.078 28.7)
-
Step 400
400
#E48073
oklch(70.6% 0.126 28.4)
-
Step 500
500
#D95C4E
oklch(63.1% 0.16 28.8)
-
Step 600
600 (this color)
#C43C31
oklch(55.4% 0.174 28.6)
-
Step 700
700
#A92D24
oklch(49% 0.162 28.7)
-
Step 800
800
#8A2720
oklch(42.7% 0.135 28.2)
-
Step 900
900
#6F261F
oklch(37.7% 0.105 28.5)
-
Step 950
950
#411713
oklch(26.9% 0.066 27.8)
#C43C31 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) | #635A2F | 0.185 |
| Deuteranopia (no green cones) | #85782C | 0.170 |
| Tritanopia (no blue cones) | #D80B3B | 0.057 |
| Achromatopsia (no color) | #6D6D6D | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C43C31
#C43C31
oklch(55.4% 0.174 28.6)
- #008290
#008290
oklch(55.5% 0.095 208)
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 #C43C31, 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 0.036
- Dusty Red #B9484E ΔE 0.037
- Brick Orange #C14A09 ΔE 0.042
- Faded Red #D3494E ΔE 0.048
- Burnt Orange #C04E01 ΔE 0.050
- Dark Coral #CF524E ΔE 0.052
- Cherry #CF0234 ΔE 0.052
Use #C43C31 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.