#DE0538
Closest named color: Crimson (#DC143C). oklch(57.1% 0.228 20.6), rgb(222, 5, 56).
Aa
White text reads best on this color (5.01:1).
About this color
#DE0538 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.228 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.006 away. White text reads best on it, at 5.01:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.228) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.18:1 |
| White text | 5.01:1 |
Values
| HEX | #DE0538 |
| RGB | rgb(222, 5, 56) |
| HSL | hsl(346, 96%, 45%) |
| OKLCH | oklch(57.1% 0.228 20.6) |
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 #DE0538 | 5.01:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #DE0538 | 4.18:1 | AA large text | Lc 32.1 | Non-text elements, placeholder text |
| #DE0538 text on white | 5.01:1 | AA | Lc 72.0 | Content text, not long reading |
| #DE0538 text on black | 4.18:1 | 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
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FDE3E1
oklch(93.6% 0.029 23)
-
Step 200
200
#FDCBC9
oklch(88.5% 0.057 21)
-
Step 300
300
#FCA6A4
oklch(80.9% 0.102 21)
-
Step 400
400
#F67074
oklch(70.7% 0.165 20.4)
-
Step 500
500
#ED3F50
oklch(63.1% 0.209 20.6)
-
Step 600
600 (this color)
#DE0538
oklch(57.1% 0.228 20.6)
-
Step 700
700
#B6002C
oklch(49.1% 0.197 20.5)
-
Step 800
800
#970022
oklch(42.8% 0.172 20.8)
-
Step 900
900
#7A1220
oklch(37.7% 0.137 20.6)
-
Step 950
950
#480E13
oklch(27% 0.087 20.7)
#DE0538 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) | #5B5437 | 0.254 |
| Deuteranopia (no green cones) | #8C7E30 | 0.230 |
| Tritanopia (no blue cones) | #F50023 | 0.050 |
| Achromatopsia (no color) | #6F6F6F | 0.230 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DE0538
#DE0538
oklch(57.1% 0.228 20.6)
- #00888F
#00888F
oklch(57% 0.097 201.2)
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 #DE0538, closest first.
No curated palette has a color within ΔE 0.04 of #DE0538.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.006
- Lipstick #D5174E ΔE 0.031
- Cherry #CF0234 ΔE 0.032
- Red Pantone #EF233C ΔE 0.043
- Imperial Red #E63946 ΔE 0.046
- Ruby #CA0147 ΔE 0.048
- Cherry Red #F7022A ΔE 0.053
- Pink Red #F5054F ΔE 0.053
Use #DE0538 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.