#C5231E
Closest named color: Scarlet (#BE0119). oklch(53.2% 0.197 28.3), rgb(197, 35, 30).
Aa
White text reads best on this color (5.77:1).
About this color
#C5231E is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.197 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.030 away. White text reads best on it, at 5.77:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.197) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.63:1 |
| White text | 5.77:1 |
Values
| HEX | #C5231E |
| RGB | rgb(197, 35, 30) |
| HSL | hsl(2, 74%, 45%) |
| OKLCH | oklch(53.2% 0.197 28.3) |
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 #C5231E | 5.77:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #C5231E | 3.63:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #C5231E text on white | 5.77:1 | AA | Lc 77.1 | Fine for body text |
| #C5231E text on black | 3.63:1 | AA large text | Lc -24.7 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#F8CEC7
oklch(88.6% 0.049 29.1)
-
Step 300
300
#F5ABA0
oklch(80.9% 0.089 28.6)
-
Step 400
400
#EC7B6D
oklch(70.8% 0.142 28.5)
-
Step 500
500
#E25246
oklch(63.1% 0.181 28.1)
-
Step 600
600 (this color)
#C5231E
oklch(53.2% 0.197 28.3)
-
Step 700
700
#B11D19
oklch(49.1% 0.183 28.2)
-
Step 800
800
#901C17
oklch(42.7% 0.152 28.2)
-
Step 900
900
#74201A
oklch(37.8% 0.119 28.2)
-
Step 950
950
#441410
oklch(26.9% 0.075 27.9)
#C5231E 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) | #594F1B | 0.214 |
| Deuteranopia (no green cones) | #807213 | 0.194 |
| Tritanopia (no blue cones) | #D90025 | 0.041 |
| Achromatopsia (no color) | #666666 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C5231E
#C5231E
oklch(53.2% 0.197 28.3)
- #007B88
#007B88
oklch(53.3% 0.092 207.7)
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 #C5231E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.030
- Lipstick Red #C0022F ΔE 0.035
- Cherry #CF0234 ΔE 0.035
- Firebrick #B22222 ΔE 0.040
- Dull Red #BB3F3F ΔE 0.041
- Sinopia #BB3E03 ΔE 0.044
- Rusty Red #AF2F0D ΔE 0.046
- Rose Red #BE013C ΔE 0.049
Use #C5231E 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.