#C1351D
Closest named color: Sinopia (#BB3E03). oklch(54% 0.181 32.2), rgb(193, 53, 29).
Aa
White text reads best on this color (5.53:1).
About this color
#C1351D is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.181 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.024 away. White text reads best on it, at 5.53:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.181) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.79:1 |
| White text | 5.53:1 |
Values
| HEX | #C1351D |
| RGB | rgb(193, 53, 29) |
| HSL | hsl(9, 74%, 44%) |
| OKLCH | oklch(54% 0.181 32.2) |
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 #C1351D | 5.53:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #C1351D | 3.79:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #C1351D text on white | 5.53:1 | AA | Lc 76.3 | Fine for body text |
| #C1351D text on black | 3.79:1 | AA large text | Lc -25.4 | 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
#F9E5E0
oklch(93.7% 0.023 34.3)
-
Step 200
200
#F6CFC7
oklch(88.6% 0.046 31.6)
-
Step 300
300
#F0AEA0
oklch(80.9% 0.081 32.3)
-
Step 400
400
#E6806C
oklch(70.8% 0.13 32.2)
-
Step 500
500
#DB5B44
oklch(63.1% 0.166 32.2)
-
Step 600
600 (this color)
#C1351D
oklch(54% 0.181 32.2)
-
Step 700
700
#AB2B15
oklch(49% 0.168 32.2)
-
Step 800
800
#8B2615
oklch(42.7% 0.139 32.1)
-
Step 900
900
#702518
oklch(37.7% 0.109 32.1)
-
Step 950
950
#42170F
oklch(27% 0.069 32.4)
#C1351D 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) | #605518 | 0.190 |
| Deuteranopia (no green cones) | #827414 | 0.173 |
| Tritanopia (no blue cones) | #D50031 | 0.057 |
| Achromatopsia (no color) | #686868 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C1351D
#C1351D
oklch(54% 0.181 32.2)
- #007C8E
#007C8E
oklch(53.8% 0.094 212.3)
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 #C1351D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.024
- Dull Red #BB3F3F ΔE 0.032
- Brick Orange #C14A09 ΔE 0.041
- Rusty Red #AF2F0D ΔE 0.041
- Firebrick #B22222 ΔE 0.046
- Scarlet #BE0119 ΔE 0.047
- Burnt Orange #C04E01 ΔE 0.049
- Dusty Red #B9484E ΔE 0.051
Use #C1351D 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.