#C9105C
Closest named color: Ruby (#CA0147). oklch(54.1% 0.211 6), rgb(201, 16, 92).
Aa
White text reads best on this color (5.65:1).
About this color
#C9105C is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.211 and its hue 6°. Its hue sits on the warm side of the wheel. The nearest named color is Ruby (#CA0147), ΔE 0.029 away. White text reads best on it, at 5.65:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.211) |
| Temperature | warm |
| Nearest name | Ruby (#CA0147) |
| Black text | 3.71:1 |
| White text | 5.65:1 |
Values
| HEX | #C9105C |
| RGB | rgb(201, 16, 92) |
| HSL | hsl(335, 85%, 43%) |
| OKLCH | oklch(54.1% 0.211 6) |
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 #C9105C | 5.65:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #C9105C | 3.71:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #C9105C text on white | 5.65:1 | AA | Lc 76.1 | Fine for body text |
| #C9105C text on black | 3.71:1 | AA large text | Lc -25.6 | 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
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FBE3E7
oklch(93.6% 0.027 6.2)
-
Step 200
200
#F9CBD4
oklch(88.4% 0.053 5.1)
-
Step 300
300
#F6A7B7
oklch(80.9% 0.095 6.1)
-
Step 400
400
#ED7492
oklch(70.7% 0.151 6.1)
-
Step 500
500
#E34777
oklch(63% 0.194 6.1)
-
Step 600
600 (this color)
#C9105C
oklch(54.1% 0.211 6)
-
Step 700
700
#B2024F
oklch(49.1% 0.196 6.2)
-
Step 800
800
#910E41
oklch(42.8% 0.163 6.2)
-
Step 900
900
#741937
oklch(37.7% 0.126 6.1)
-
Step 950
950
#451120
oklch(27.1% 0.08 6.8)
#C9105C 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) | #4C515D | 0.240 |
| Deuteranopia (no green cones) | #7A7358 | 0.215 |
| Tritanopia (no blue cones) | #DC0037 | 0.063 |
| Achromatopsia (no color) | #676767 | 0.213 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9105C
#C9105C
oklch(54.1% 0.211 6)
- #008177
#008177
oklch(54.3% 0.095 185.4)
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 #C9105C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ruby #CA0147 ΔE 0.029
- Dark Hot Pink #D90166 ΔE 0.034
- Lipstick #D5174E ΔE 0.036
- Cerise #DE0C62 ΔE 0.043
- Rose Red #BE013C ΔE 0.048
- Cherry #CF0234 ΔE 0.054
- Dark Pink #CB416B ΔE 0.054
- Raspberry #B00149 ΔE 0.059
Use #C9105C 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.