#C23A4B
Closest named color: Dull Red (#BB3F3F). oklch(55.3% 0.172 17.9), rgb(194, 58, 75).
Aa
White text reads best on this color (5.24:1).
About this color
#C23A4B is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.172 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.023 away. White text reads best on it, at 5.24:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.172) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #C23A4B |
| RGB | rgb(194, 58, 75) |
| HSL | hsl(353, 54%, 49%) |
| OKLCH | oklch(55.3% 0.172 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 #C23A4B | 5.24:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #C23A4B | 4.00:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #C23A4B text on white | 5.24:1 | AA | Lc 74.9 | Content text, not long reading |
| #C23A4B text on black | 4.00:1 | AA large text | Lc -26.8 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F9E4E4
oklch(93.6% 0.023 17.6)
-
Step 200
200
#F4CECE
oklch(88.4% 0.043 18)
-
Step 300
300
#EEADAE
oklch(80.9% 0.077 17.9)
-
Step 400
400
#E37F83
oklch(70.7% 0.123 18.2)
-
Step 500
500
#D85A65
oklch(63.1% 0.158 17.6)
-
Step 600
600 (this color)
#C23A4B
oklch(55.3% 0.172 17.9)
-
Step 700
700
#A82C3D
oklch(49.1% 0.159 17.9)
-
Step 800
800
#882633
oklch(42.6% 0.132 17.4)
-
Step 900
900
#6E252C
oklch(37.7% 0.104 18)
-
Step 950
950
#41171A
oklch(27.1% 0.065 18.2)
#C23A4B 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) | #5E5A4B | 0.189 |
| Deuteranopia (no green cones) | #817747 | 0.174 |
| Tritanopia (no blue cones) | #D41541 | 0.043 |
| Achromatopsia (no color) | #6C6C6C | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C23A4B
#C23A4B
oklch(55.3% 0.172 17.9)
- #008386
#008386
oklch(55.3% 0.094 197.6)
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 #C23A4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.023
- Dusty Red #B9484E ΔE 0.026
- Dark Rose #B5485D ΔE 0.035
- Deep Rose #C74767 ΔE 0.040
- Faded Red #D3494E ΔE 0.047
- Lipstick #D5174E ΔE 0.047
- Dark Pink #CB416B ΔE 0.047
- Cherry #CF0234 ΔE 0.047
Use #C23A4B 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.