#C6103B
Closest named color: Cherry (#CF0234). oklch(52.8% 0.205 18.1), rgb(198, 16, 59).
Aa
White text reads best on this color (5.93:1).
About this color
#C6103B is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.205 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.019 away. White text reads best on it, at 5.93:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.205) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.53:1 |
| White text | 5.93:1 |
Values
| HEX | #C6103B |
| RGB | rgb(198, 16, 59) |
| HSL | hsl(346, 85%, 42%) |
| OKLCH | oklch(52.8% 0.205 18.1) |
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 #C6103B | 5.93:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #C6103B | 3.53:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #C6103B text on white | 5.93:1 | AA | Lc 77.4 | Fine for body text |
| #C6103B text on black | 3.53:1 | AA large text | Lc -24.3 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#F9CCCC
oklch(88.4% 0.051 18.2)
-
Step 300
300
#F7A9AA
oklch(81% 0.092 18.4)
-
Step 400
400
#EE767D
oklch(70.6% 0.148 18)
-
Step 500
500
#E54B5C
oklch(63.1% 0.189 18.2)
-
Step 600
600 (this color)
#C6103B
oklch(52.8% 0.205 18.1)
-
Step 700
700
#B30D35
oklch(49% 0.191 17.8)
-
Step 800
800
#92142C
oklch(42.8% 0.158 18.1)
-
Step 900
900
#751B27
oklch(37.7% 0.123 18.3)
-
Step 950
950
#451217
oklch(27% 0.078 18.5)
#C6103B 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) | #514C3B | 0.229 |
| Deuteranopia (no green cones) | #7C7135 | 0.209 |
| Tritanopia (no blue cones) | #DA0026 | 0.045 |
| Achromatopsia (no color) | #646464 | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C6103B
#C6103B
oklch(52.8% 0.205 18.1)
- #007B7E
#007B7E
oklch(52.9% 0.09 197.8)
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 #C6103B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.019
- Ruby #CA0147 ΔE 0.019
- Lipstick Red #C0022F ΔE 0.019
- Rose Red #BE013C ΔE 0.021
- Scarlet #BE0119 ΔE 0.037
- Lipstick #D5174E ΔE 0.039
- Crimson #DC143C ΔE 0.046
- Firebrick #B22222 ΔE 0.050
Use #C6103B 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.