#C53015
Closest named color: Sinopia (#BB3E03). oklch(54.2% 0.189 32.3), rgb(197, 48, 21).
Aa
White text reads best on this color (5.51:1).
About this color
#C53015 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.189 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.029 away. White text reads best on it, at 5.51:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.189) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.80:1 |
| White text | 5.51:1 |
Values
| HEX | #C53015 |
| RGB | rgb(197, 48, 21) |
| HSL | hsl(9, 81%, 43%) |
| OKLCH | oklch(54.2% 0.189 32.3) |
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 #C53015 | 5.51:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #C53015 | 3.80:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #C53015 text on white | 5.51:1 | AA | Lc 76.0 | Fine for body text |
| #C53015 text on black | 3.80:1 | AA large text | Lc -25.7 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E0
oklch(93.6% 0.025 29.9)
-
Step 200
200
#F7CEC6
oklch(88.4% 0.048 30.9)
-
Step 300
300
#F2AD9E
oklch(80.9% 0.084 32.6)
-
Step 400
400
#E97E69
oklch(70.8% 0.136 32.3)
-
Step 500
500
#DF573F
oklch(63.1% 0.175 32.2)
-
Step 600
600 (this color)
#C53015
oklch(54.2% 0.189 32.3)
-
Step 700
700
#AE260C
oklch(49.1% 0.176 32.4)
-
Step 800
800
#8D220F
oklch(42.6% 0.146 32.3)
-
Step 900
900
#722315
oklch(37.7% 0.114 32.4)
-
Step 950
950
#43160E
oklch(27% 0.072 32.1)
#C53015 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) | #5F540E | 0.201 |
| Deuteranopia (no green cones) | #837506 | 0.183 |
| Tritanopia (no blue cones) | #D9002C | 0.052 |
| Achromatopsia (no color) | #696969 | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C53015
#C53015
oklch(54.2% 0.189 32.3)
- #007D8F
#007D8F
oklch(54.1% 0.094 212.2)
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 #C53015, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.029
- Dull Red #BB3F3F ΔE 0.039
- Brick Orange #C14A09 ΔE 0.044
- Scarlet #BE0119 ΔE 0.046
- Rusty Red #AF2F0D ΔE 0.046
- Firebrick #B22222 ΔE 0.049
- Cherry #CF0234 ΔE 0.050
- Burnt Orange #C04E01 ΔE 0.053
Use #C53015 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.