#C4172B
Closest named color: Lipstick Red (#C0022F). oklch(52.5% 0.201 23.5), rgb(196, 23, 43).
Aa
White text reads best on this color (5.99:1).
About this color
#C4172B is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.201 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.018 away. White text reads best on it, at 5.99:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.201) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.50:1 |
| White text | 5.99:1 |
Values
| HEX | #C4172B |
| RGB | rgb(196, 23, 43) |
| HSL | hsl(353, 79%, 43%) |
| OKLCH | oklch(52.5% 0.201 23.5) |
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 #C4172B | 5.99:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #C4172B | 3.50:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #C4172B text on white | 5.99:1 | AA | Lc 77.9 | Fine for body text |
| #C4172B text on black | 3.50:1 | 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
#FBE4E2
oklch(93.7% 0.025 23.6)
-
Step 200
200
#F9CDC9
oklch(88.5% 0.05 24.2)
-
Step 300
300
#F6AAA5
oklch(81% 0.09 23.4)
-
Step 400
400
#ED7874
oklch(70.6% 0.145 23.5)
-
Step 500
500
#E44F50
oklch(63.2% 0.185 23.7)
-
Step 600
600 (this color)
#C4172B
oklch(52.5% 0.201 23.5)
-
Step 700
700
#B31527
oklch(49.1% 0.188 23.4)
-
Step 800
800
#911821
oklch(42.7% 0.155 23.7)
-
Step 900
900
#751D20
oklch(37.7% 0.122 23.5)
-
Step 950
950
#451313
oklch(27% 0.077 23.8)
#C4172B 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) | #544C2A | 0.222 |
| Deuteranopia (no green cones) | #7D7024 | 0.202 |
| Tritanopia (no blue cones) | #D80022 | 0.039 |
| Achromatopsia (no color) | #636363 | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4172B
#C4172B
oklch(52.5% 0.201 23.5)
- #007982
#007982
oklch(52.5% 0.09 203.9)
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 #C4172B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.018
- Scarlet #BE0119 ΔE 0.022
- Cherry #CF0234 ΔE 0.025
- Rose Red #BE013C ΔE 0.031
- Firebrick #B22222 ΔE 0.037
- Ruby #CA0147 ΔE 0.039
- Dull Red #BB3F3F ΔE 0.046
- Rufous #AE2012 ΔE 0.050
Use #C4172B 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.