#D43343
Closest named color: Crimson (#DC143C). oklch(57.6% 0.196 21), rgb(212, 51, 67).
Aa
White text reads best on this color (4.82:1).
About this color
#D43343 is a medium-dark, vivid red. In OKLCH its lightness is 58%, its chroma 0.196 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.026 away. White text reads best on it, at 4.82:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.196) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.35:1 |
| White text | 4.82:1 |
Values
| HEX | #D43343 |
| RGB | rgb(212, 51, 67) |
| HSL | hsl(354, 65%, 52%) |
| OKLCH | oklch(57.6% 0.196 21) |
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 #D43343 | 4.82:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #D43343 | 4.35:1 | AA large text | Lc 32.1 | Non-text elements, placeholder text |
| #D43343 text on white | 4.82:1 | AA | Lc 72.0 | Content text, not long reading |
| #D43343 text on black | 4.35:1 | AA large text | Lc -29.7 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FBE4E2
oklch(93.7% 0.025 23.6)
-
Step 200
200
#F8CDCB
oklch(88.5% 0.049 21.2)
-
Step 300
300
#F5AAA8
oklch(80.9% 0.089 20.9)
-
Step 400
400
#EB797A
oklch(70.6% 0.141 20.7)
-
Step 500
500
#E25058
oklch(63.1% 0.181 20.9)
-
Step 600
600 (this color)
#D43343
oklch(57.6% 0.196 21)
-
Step 700
700
#B11A30
oklch(49.1% 0.183 20.8)
-
Step 800
800
#901B28
oklch(42.8% 0.151 21.2)
-
Step 900
900
#731F25
oklch(37.7% 0.117 20.9)
-
Step 950
950
#441416
oklch(27% 0.074 21.1)
#D43343 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) | #635C42 | 0.215 |
| Deuteranopia (no green cones) | #8B7E3E | 0.196 |
| Tritanopia (no blue cones) | #E9003B | 0.044 |
| Achromatopsia (no color) | #727272 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D43343
#D43343
oklch(57.6% 0.196 21)
- #008A91
#008A91
oklch(57.6% 0.098 201.1)
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 #D43343, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.026
- Faded Red #D3494E ΔE 0.032
- Lipstick #D5174E ΔE 0.035
- Imperial Red #E63946 ΔE 0.039
- Cherry #CF0234 ΔE 0.040
- Dark Coral #CF524E ΔE 0.047
- Dull Red #BB3F3F ΔE 0.049
- Deep Rose #C74767 ΔE 0.051
Use #D43343 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.