#C6123C
Closest named color: Ruby (#CA0147). oklch(52.9% 0.204 17.9), rgb(198, 18, 60).
Aa
White text reads best on this color (5.91:1).
About this color
#C6123C is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.204 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Ruby (#CA0147), ΔE 0.019 away. White text reads best on it, at 5.91:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.204) |
| Temperature | warm |
| Nearest name | Ruby (#CA0147) |
| Black text | 3.55:1 |
| White text | 5.91:1 |
Values
| HEX | #C6123C |
| RGB | rgb(198, 18, 60) |
| HSL | hsl(346, 83%, 42%) |
| OKLCH | oklch(52.9% 0.204 17.9) |
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 #C6123C | 5.91:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #C6123C | 3.55:1 | AA large text | Lc 26.7 | Dividers and decoration only |
| #C6123C text on white | 5.91:1 | AA | Lc 77.4 | Fine for body text |
| #C6123C text on black | 3.55:1 | AA large text | Lc -24.4 | 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
#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
#F6A9AA
oklch(80.9% 0.091 18.4)
-
Step 400
400
#EE767E
oklch(70.7% 0.148 17.5)
-
Step 500
500
#E44C5D
oklch(63.1% 0.187 18)
-
Step 600
600 (this color)
#C6123C
oklch(52.9% 0.204 17.9)
-
Step 700
700
#B30E35
oklch(49.1% 0.19 17.9)
-
Step 800
800
#91142C
oklch(42.6% 0.157 18)
-
Step 900
900
#751B28
oklch(37.7% 0.123 17.6)
-
Step 950
950
#451218
oklch(27% 0.078 17.3)
#C6123C 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) | #514D3C | 0.229 |
| Deuteranopia (no green cones) | #7C7136 | 0.208 |
| Tritanopia (no blue cones) | #DA0027 | 0.045 |
| Achromatopsia (no color) | #646464 | 0.206 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C6123C
#C6123C
oklch(52.9% 0.204 17.9)
- #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 #C6123C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ruby #CA0147 ΔE 0.019
- Cherry #CF0234 ΔE 0.019
- Lipstick Red #C0022F ΔE 0.020
- Rose Red #BE013C ΔE 0.021
- Scarlet #BE0119 ΔE 0.038
- Lipstick #D5174E ΔE 0.038
- Crimson #DC143C ΔE 0.046
- Firebrick #B22222 ΔE 0.051
Use #C6123C 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.