#C63428
Closest named color: Dull Red (#BB3F3F). oklch(54.9% 0.185 29.2), rgb(198, 52, 40).
Aa
White text reads best on this color (5.35:1).
About this color
#C63428 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.185 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.029 away. White text reads best on it, at 5.35:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.185) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.92:1 |
| White text | 5.35:1 |
Values
| HEX | #C63428 |
| RGB | rgb(198, 52, 40) |
| HSL | hsl(5, 66%, 47%) |
| OKLCH | oklch(54.9% 0.185 29.2) |
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 #C63428 | 5.35:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #C63428 | 3.92:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #C63428 text on white | 5.35:1 | AA | Lc 75.3 | Fine for body text |
| #C63428 text on black | 3.92:1 | AA large text | Lc -26.4 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E1
oklch(93.6% 0.025 26.9)
-
Step 200
200
#F6CEC8
oklch(88.4% 0.046 28)
-
Step 300
300
#F2ADA2
oklch(81% 0.083 29.1)
-
Step 400
400
#E87E6F
oklch(70.8% 0.134 29.3)
-
Step 500
500
#DD5849
oklch(63.1% 0.17 29.1)
-
Step 600
600 (this color)
#C63428
oklch(54.9% 0.185 29.2)
-
Step 700
700
#AD271D
oklch(49.1% 0.172 29.2)
-
Step 800
800
#8C231A
oklch(42.6% 0.142 29.2)
-
Step 900
900
#71241C
oklch(37.8% 0.11 29.2)
-
Step 950
950
#431611
oklch(27.1% 0.071 28.9)
#C63428 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) | #605625 | 0.198 |
| Deuteranopia (no green cones) | #847621 | 0.180 |
| Tritanopia (no blue cones) | #DA0033 | 0.051 |
| Achromatopsia (no color) | #6B6B6B | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C63428
#C63428
oklch(54.9% 0.185 29.2)
- #00808F
#00808F
oklch(54.9% 0.095 209.1)
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 #C63428, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.029
- Sinopia #BB3E03 ΔE 0.036
- Cherry #CF0234 ΔE 0.045
- Brick Orange #C14A09 ΔE 0.046
- Dusty Red #B9484E ΔE 0.047
- Scarlet #BE0119 ΔE 0.049
- Lipstick Red #C0022F ΔE 0.051
- Firebrick #B22222 ΔE 0.053
Use #C63428 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.