#D82537
Closest named color: Crimson (#DC143C). oklch(57.1% 0.211 22.9), rgb(216, 37, 55).
Aa
White text reads best on this color (4.95:1).
About this color
#D82537 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.211 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.015 away. White text reads best on it, at 4.95:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.211) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.23:1 |
| White text | 4.95:1 |
Values
| HEX | #D82537 |
| RGB | rgb(216, 37, 55) |
| HSL | hsl(354, 71%, 50%) |
| OKLCH | oklch(57.1% 0.211 22.9) |
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 #D82537 | 4.95:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #D82537 | 4.23:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #D82537 text on white | 4.95:1 | AA | Lc 72.4 | Content text, not long reading |
| #D82537 text on black | 4.23:1 | AA large text | Lc -29.3 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E1
oklch(93.6% 0.028 23.2)
-
Step 200
200
#FACCC9
oklch(88.4% 0.052 22.6)
-
Step 300
300
#F8A8A4
oklch(80.8% 0.095 22.5)
-
Step 400
400
#F07673
oklch(70.7% 0.151 23.1)
-
Step 500
500
#E74A4F
oklch(63.1% 0.193 22.9)
-
Step 600
600 (this color)
#D82537
oklch(57.1% 0.211 22.9)
-
Step 700
700
#B60525
oklch(49.1% 0.196 22.9)
-
Step 800
800
#941020
oklch(42.8% 0.163 22.9)
-
Step 900
900
#761A1F
oklch(37.6% 0.126 23)
-
Step 950
950
#461213
oklch(27.1% 0.08 23.1)
#D82537 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) | #605836 | 0.231 |
| Deuteranopia (no green cones) | #8B7D30 | 0.211 |
| Tritanopia (no blue cones) | #EE002E | 0.042 |
| Achromatopsia (no color) | #707070 | 0.212 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D82537
#D82537
oklch(57.1% 0.211 22.9)
- #008891
#008891
oklch(57.1% 0.097 203)
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 #D82537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.015
- Cherry #CF0234 ΔE 0.032
- Lipstick #D5174E ΔE 0.035
- Imperial Red #E63946 ΔE 0.041
- Faded Red #D3494E ΔE 0.046
- Red Pantone #EF233C ΔE 0.046
- Ruby #CA0147 ΔE 0.050
- Tomato Red #EC2D01 ΔE 0.055
Use #D82537 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.