#C03F35
Closest named color: Dull Red (#BB3F3F). oklch(55.1% 0.167 28.2), rgb(192, 63, 53).
Aa
White text reads best on this color (5.24:1).
About this color
#C03F35 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.167 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.015 away. White text reads best on it, at 5.24:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.167) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #C03F35 |
| RGB | rgb(192, 63, 53) |
| HSL | hsl(4, 57%, 48%) |
| OKLCH | oklch(55.1% 0.167 28.2) |
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 #C03F35 | 5.24:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #C03F35 | 4.00:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #C03F35 text on white | 5.24:1 | AA | Lc 75.0 | Fine for body text |
| #C03F35 text on black | 4.00:1 | AA large text | Lc -26.7 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E2
oklch(93.6% 0.021 28.3)
-
Step 200
200
#F4CFCA
oklch(88.5% 0.042 27)
-
Step 300
300
#EDAFA6
oklch(80.9% 0.074 28.1)
-
Step 400
400
#E28276
oklch(70.8% 0.121 28)
-
Step 500
500
#D65F52
oklch(63.1% 0.153 28.4)
-
Step 600
600 (this color)
#C03F35
oklch(55.1% 0.167 28.2)
-
Step 700
700
#A73129
oklch(49.1% 0.156 28.1)
-
Step 800
800
#872A23
oklch(42.6% 0.128 28.1)
-
Step 900
900
#6D2821
oklch(37.7% 0.1 28.5)
-
Step 950
950
#401814
oklch(26.9% 0.063 27.8)
#C03F35 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) | #635A33 | 0.177 |
| Deuteranopia (no green cones) | #837631 | 0.162 |
| Tritanopia (no blue cones) | #D31A3E | 0.054 |
| Achromatopsia (no color) | #6C6C6C | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C03F35
#C03F35
oklch(55.1% 0.167 28.2)
- #00818F
#00818F
oklch(55.2% 0.095 208.1)
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 #C03F35, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.015
- Dusty Red #B9484E ΔE 0.030
- Sinopia #BB3E03 ΔE 0.035
- Brick Orange #C14A09 ΔE 0.042
- Burnt Orange #C04E01 ΔE 0.050
- Faded Red #D3494E ΔE 0.050
- Dark Rose #B5485D ΔE 0.052
- Dark Coral #CF524E ΔE 0.052
Use #C03F35 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.