#C23D3A
Closest named color: Dull Red (#BB3F3F). oklch(55.3% 0.17 25.7), rgb(194, 61, 58).
Aa
White text reads best on this color (5.22:1).
About this color
#C23D3A is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.170 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.014 away. White text reads best on it, at 5.22:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.170) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.02:1 |
| White text | 5.22:1 |
Values
| HEX | #C23D3A |
| RGB | rgb(194, 61, 58) |
| HSL | hsl(1, 54%, 49%) |
| OKLCH | oklch(55.3% 0.17 25.7) |
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 #C23D3A | 5.22:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #C23D3A | 4.02:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #C23D3A text on white | 5.22:1 | AA | Lc 74.8 | Content text, not long reading |
| #C23D3A text on black | 4.02:1 | AA large text | Lc -26.9 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F9E5E2
oklch(93.7% 0.022 27.8)
-
Step 200
200
#F4CFCB
oklch(88.5% 0.042 25.3)
-
Step 300
300
#EEAEA7
oklch(80.9% 0.076 25.9)
-
Step 400
400
#E38178
oklch(70.8% 0.122 26.1)
-
Step 500
500
#D85D56
oklch(63.2% 0.156 25.8)
-
Step 600
600 (this color)
#C23D3A
oklch(55.3% 0.17 25.7)
-
Step 700
700
#A82F2D
oklch(49.1% 0.158 25.9)
-
Step 800
800
#882826
oklch(42.6% 0.131 25.7)
-
Step 900
900
#6E2724
oklch(37.8% 0.102 25.6)
-
Step 950
950
#411815
oklch(27.1% 0.065 26.5)
#C23D3A 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) | #625A38 | 0.183 |
| Deuteranopia (no green cones) | #837736 | 0.168 |
| Tritanopia (no blue cones) | #D5153E | 0.051 |
| Achromatopsia (no color) | #6C6C6C | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C23D3A
#C23D3A
oklch(55.3% 0.17 25.7)
- #00828D
#00828D
oklch(55.4% 0.095 205.2)
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 #C23D3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.014
- Dusty Red #B9484E ΔE 0.028
- Sinopia #BB3E03 ΔE 0.043
- Faded Red #D3494E ΔE 0.046
- Dark Rose #B5485D ΔE 0.048
- Brick Orange #C14A09 ΔE 0.049
- Dark Coral #CF524E ΔE 0.050
- Cherry #CF0234 ΔE 0.051
Use #C23D3A 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.