#C10351
Closest named color: Ruby (#CA0147). oklch(52% 0.207 8.4), rgb(193, 3, 81).
Aa
White text reads best on this color (6.17:1).
About this color
#C10351 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.207 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Ruby (#CA0147), ΔE 0.025 away. White text reads best on it, at 6.17:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.207) |
| Temperature | warm |
| Nearest name | Ruby (#CA0147) |
| Black text | 3.39:1 |
| White text | 6.17:1 |
Values
| HEX | #C10351 |
| RGB | rgb(193, 3, 81) |
| HSL | hsl(335, 97%, 38%) |
| OKLCH | oklch(52% 0.207 8.4) |
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 #C10351 | 6.17:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #C10351 | 3.39:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #C10351 text on white | 6.17:1 | AA | Lc 78.3 | Fine for body text |
| #C10351 text on black | 3.39:1 | AA large text | Lc -23.5 | 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 700.
-
Step 50
50
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FCE2E6
oklch(93.5% 0.029 7.1)
-
Step 200
200
#FBCBD2
oklch(88.6% 0.055 8.4)
-
Step 300
300
#F9A5B4
oklch(80.8% 0.101 7.9)
-
Step 400
400
#F1708D
oklch(70.6% 0.16 8)
-
Step 500
500
#E84071
oklch(63% 0.205 8.1)
-
Step 600
600
#D30059
oklch(55.5% 0.222 8.3)
-
Step 700
700 (this color)
#C10351
oklch(52% 0.207 8.4)
-
Step 800
800
#94003C
oklch(42.7% 0.171 8.4)
-
Step 900
900
#771433
oklch(37.7% 0.133 8.7)
-
Step 950
950
#460F1E
oklch(27% 0.084 8.6)
#C10351 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) | #484B52 | 0.236 |
| Deuteranopia (no green cones) | #756D4D | 0.211 |
| Tritanopia (no blue cones) | #D3002F | 0.059 |
| Achromatopsia (no color) | #616161 | 0.209 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C10351
#C10351
oklch(52% 0.207 8.4)
- #007973
#007973
oklch(51.9% 0.09 188.7)
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 #C10351, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ruby #CA0147 ΔE 0.025
- Rose Red #BE013C ΔE 0.029
- Raspberry #B00149 ΔE 0.037
- Lipstick Red #C0022F ΔE 0.045
- Lipstick #D5174E ΔE 0.047
- Cherry #CF0234 ΔE 0.050
- Rouge #AB1239 ΔE 0.055
- Dark Hot Pink #D90166 ΔE 0.056
Use #C10351 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.