#C50B34
Closest named color: Lipstick Red (#C0022F). oklch(52.4% 0.206 20), rgb(197, 11, 52).
Aa
White text reads best on this color (6.04:1).
About this color
#C50B34 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.206 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.013 away. White text reads best on it, at 6.04:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.206) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.47:1 |
| White text | 6.04:1 |
Values
| HEX | #C50B34 |
| RGB | rgb(197, 11, 52) |
| HSL | hsl(347, 89%, 41%) |
| OKLCH | oklch(52.4% 0.206 20) |
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 #C50B34 | 6.04:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #C50B34 | 3.47:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #C50B34 text on white | 6.04:1 | AA | Lc 77.8 | Fine for body text |
| #C50B34 text on black | 3.47:1 | AA large text | Lc -23.9 | 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
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FACCCB
oklch(88.5% 0.052 19.6)
-
Step 300
300
#F7A9A8
oklch(81% 0.092 20.1)
-
Step 400
400
#EF767A
oklch(70.7% 0.149 19.6)
-
Step 500
500
#E54B58
oklch(63.1% 0.19 19.8)
-
Step 600
600 (this color)
#C50B34
oklch(52.4% 0.206 20)
-
Step 700
700
#B40C2F
oklch(49.1% 0.192 20)
-
Step 800
800
#921328
oklch(42.7% 0.159 19.8)
-
Step 900
900
#751B25
oklch(37.6% 0.123 19.6)
-
Step 950
950
#451216
oklch(27% 0.078 19.6)
#C50B34 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) | #514B34 | 0.229 |
| Deuteranopia (no green cones) | #7C6F2E | 0.207 |
| Tritanopia (no blue cones) | #D90021 | 0.044 |
| Achromatopsia (no color) | #636363 | 0.208 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C50B34
#C50B34
oklch(52.4% 0.206 20)
- #00797E
#00797E
oklch(52.4% 0.089 199.9)
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 #C50B34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.013
- Cherry #CF0234 ΔE 0.020
- Rose Red #BE013C ΔE 0.021
- Ruby #CA0147 ΔE 0.027
- Scarlet #BE0119 ΔE 0.029
- Firebrick #B22222 ΔE 0.044
- Lipstick #D5174E ΔE 0.046
- Crimson #DC143C ΔE 0.050
Use #C50B34 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.