#C23840
Closest named color: Dull Red (#BB3F3F). oklch(54.9% 0.174 22), rgb(194, 56, 64).
Aa
White text reads best on this color (5.33:1).
About this color
#C23840 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.174 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.016 away. White text reads best on it, at 5.33:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.93:1 |
| White text | 5.33:1 |
Values
| HEX | #C23840 |
| RGB | rgb(194, 56, 64) |
| HSL | hsl(357, 55%, 49%) |
| OKLCH | oklch(54.9% 0.174 22) |
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 #C23840 | 5.33:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #C23840 | 3.93:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #C23840 text on white | 5.33:1 | AA | Lc 75.4 | Fine for body text |
| #C23840 text on black | 3.93:1 | AA large text | Lc -26.3 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#F9E4E3
oklch(93.5% 0.023 20.9)
-
Step 200
200
#F5CFCC
oklch(88.6% 0.043 23.3)
-
Step 300
300
#EFADAA
oklch(80.9% 0.078 21.9)
-
Step 400
400
#E47F7D
oklch(70.7% 0.125 21.9)
-
Step 500
500
#D95A5C
oklch(63.1% 0.16 21.9)
-
Step 600
600 (this color)
#C23840
oklch(54.9% 0.174 22)
-
Step 700
700
#A92B34
oklch(49% 0.162 21.9)
-
Step 800
800
#8A262B
oklch(42.8% 0.135 22.3)
-
Step 900
900
#6F2527
oklch(37.7% 0.105 22.1)
-
Step 950
950
#411717
oklch(27% 0.066 22.5)
#C23840 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) | #5F583F | 0.189 |
| Deuteranopia (no green cones) | #81763C | 0.175 |
| Tritanopia (no blue cones) | #D5073C | 0.047 |
| Achromatopsia (no color) | #6B6B6B | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C23840
#C23840
oklch(54.9% 0.174 22)
- #008188
#008188
oklch(54.9% 0.093 201.5)
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 #C23840, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.016
- Dusty Red #B9484E ΔE 0.029
- Cherry #CF0234 ΔE 0.043
- Dark Rose #B5485D ΔE 0.044
- Lipstick Red #C0022F ΔE 0.048
- Faded Red #D3494E ΔE 0.049
- Ruby #CA0147 ΔE 0.050
- Lipstick #D5174E ΔE 0.052
Use #C23840 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.