#C03E2C
Closest named color: Dull Red (#BB3F3F). oklch(54.9% 0.169 30.9), rgb(192, 62, 44).
Aa
White text reads best on this color (5.29:1).
About this color
#C03E2C is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.169 and its hue 31°. 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 5.29:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.169) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #C03E2C |
| RGB | rgb(192, 62, 44) |
| HSL | hsl(7, 63%, 46%) |
| OKLCH | oklch(54.9% 0.169 30.9) |
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 #C03E2C | 5.29:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #C03E2C | 3.96:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #C03E2C text on white | 5.29:1 | AA | Lc 75.2 | Fine for body text |
| #C03E2C text on black | 3.96:1 | AA large text | Lc -26.5 | 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
#F8E5E1
oklch(93.6% 0.022 31.8)
-
Step 200
200
#F4D0C8
oklch(88.6% 0.042 32.6)
-
Step 300
300
#EEAFA3
oklch(81% 0.076 31)
-
Step 400
400
#E28271
oklch(70.7% 0.122 31)
-
Step 500
500
#D75F4C
oklch(63.2% 0.155 31)
-
Step 600
600 (this color)
#C03E2C
oklch(54.9% 0.169 30.9)
-
Step 700
700
#A73121
oklch(49% 0.157 30.9)
-
Step 800
800
#882A1D
oklch(42.7% 0.131 30.9)
-
Step 900
900
#6D281D
oklch(37.6% 0.101 31.3)
-
Step 950
950
#401812
oklch(26.9% 0.064 30.5)
#C03E2C 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) | #635929 | 0.178 |
| Deuteranopia (no green cones) | #847627 | 0.162 |
| Tritanopia (no blue cones) | #D3143B | 0.059 |
| Achromatopsia (no color) | #6B6B6B | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C03E2C
#C03E2C
oklch(54.9% 0.169 30.9)
- #008091
#008091
oklch(55% 0.095 210.9)
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 #C03E2C, 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 0.027
- Brick Orange #C14A09 ΔE 0.036
- Dusty Red #B9484E ΔE 0.038
- Burnt Orange #C04E01 ΔE 0.044
- Rusty Red #AF2F0D ΔE 0.049
- Burnt Siena #B75203 ΔE 0.053
- Firebrick #B22222 ΔE 0.055
Use #C03E2C 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.