#C31B3E
Closest named color: Rose Red (#BE013C). oklch(52.8% 0.198 17.7), rgb(195, 27, 62).
Aa
White text reads best on this color (5.92:1).
About this color
#C31B3E is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.198 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Rose Red (#BE013C), ΔE 0.020 away. White text reads best on it, at 5.92:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.198) |
| Temperature | warm |
| Nearest name | Rose Red (#BE013C) |
| Black text | 3.54:1 |
| White text | 5.92:1 |
Values
| HEX | #C31B3E |
| RGB | rgb(195, 27, 62) |
| HSL | hsl(348, 76%, 44%) |
| OKLCH | oklch(52.8% 0.198 17.7) |
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 #C31B3E | 5.92:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #C31B3E | 3.54:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #C31B3E text on white | 5.92:1 | AA | Lc 77.7 | Fine for body text |
| #C31B3E text on black | 3.54:1 | AA large text | Lc -24.1 | 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
#FDF2F2
oklch(97% 0.012 17.4)
-
Step 100
100
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#F8CDCD
oklch(88.5% 0.049 18.1)
-
Step 300
300
#F5AAAB
oklch(81% 0.089 18.3)
-
Step 400
400
#EC787F
oklch(70.7% 0.143 17.7)
-
Step 500
500
#E24F5F
oklch(63.2% 0.182 17.8)
-
Step 600
600 (this color)
#C31B3E
oklch(52.8% 0.198 17.7)
-
Step 700
700
#B11737
oklch(49.1% 0.184 17.8)
-
Step 800
800
#90192E
oklch(42.8% 0.153 17.8)
-
Step 900
900
#731E29
oklch(37.6% 0.118 17.7)
-
Step 950
950
#441318
oklch(26.9% 0.075 17.8)
#C31B3E 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) | #524E3E | 0.221 |
| Deuteranopia (no green cones) | #7B7039 | 0.200 |
| Tritanopia (no blue cones) | #D6002C | 0.040 |
| Achromatopsia (no color) | #646464 | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C31B3E
#C31B3E
oklch(52.8% 0.198 17.7)
- #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 #C31B3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rose Red #BE013C ΔE 0.020
- Lipstick Red #C0022F ΔE 0.021
- Ruby #CA0147 ΔE 0.022
- Cherry #CF0234 ΔE 0.025
- Scarlet #BE0119 ΔE 0.038
- Lipstick #D5174E ΔE 0.041
- Dull Red #BB3F3F ΔE 0.046
- Firebrick #B22222 ΔE 0.047
Use #C31B3E 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.