#C13009
Closest named color: Sinopia (#BB3E03). oklch(53.4% 0.187 34.1), rgb(193, 48, 9).
Aa
White text reads best on this color (5.68:1).
About this color
#C13009 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.187 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.023 away. White text reads best on it, at 5.68:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.187) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.69:1 |
| White text | 5.68:1 |
Values
| HEX | #C13009 |
| RGB | rgb(193, 48, 9) |
| HSL | hsl(13, 91%, 40%) |
| OKLCH | oklch(53.4% 0.187 34.1) |
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 #C13009 | 5.68:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #C13009 | 3.69:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #C13009 text on white | 5.68:1 | AA | Lc 76.9 | Fine for body text |
| #C13009 text on black | 3.69:1 | AA large text | Lc -24.8 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE5DF
oklch(93.7% 0.025 36.5)
-
Step 200
200
#F6CFC5
oklch(88.5% 0.046 34.7)
-
Step 300
300
#F2AD9D
oklch(80.9% 0.085 33.5)
-
Step 400
400
#E87F67
oklch(70.8% 0.135 33.9)
-
Step 500
500
#DD593C
oklch(63% 0.172 34)
-
Step 600
600 (this color)
#C13009
oklch(53.4% 0.187 34.1)
-
Step 700
700
#AD2804
oklch(49% 0.174 34)
-
Step 800
800
#8D240B
oklch(42.8% 0.144 33.9)
-
Step 900
900
#712413
oklch(37.7% 0.112 34)
-
Step 950
950
#43170D
oklch(27.2% 0.071 34.3)
#C13009 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) | #5E5200 | 0.196 |
| Deuteranopia (no green cones) | #817200 | 0.176 |
| Tritanopia (no blue cones) | #D5002B | 0.055 |
| Achromatopsia (no color) | #676767 | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C13009
#C13009
oklch(53.4% 0.187 34.1)
- #007A8E
#007A8E
oklch(53.3% 0.094 214.4)
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 #C13009, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.023
- Rusty Red #AF2F0D ΔE 0.037
- Dull Red #BB3F3F ΔE 0.041
- Brick Orange #C14A09 ΔE 0.043
- Scarlet #BE0119 ΔE 0.044
- Firebrick #B22222 ΔE 0.044
- Rufous #AE2012 ΔE 0.050
- Burnt Orange #C04E01 ΔE 0.052
Use #C13009 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.