#DE133B
Closest named color: Crimson (#DC143C). oklch(57.4% 0.224 20.5), rgb(222, 19, 59).
Aa
White text reads best on this color (4.92:1).
About this color
#DE133B is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.224 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.004 away. White text reads best on it, at 4.92:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.224) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #DE133B |
| RGB | rgb(222, 19, 59) |
| HSL | hsl(348, 84%, 47%) |
| OKLCH | oklch(57.4% 0.224 20.5) |
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 #DE133B | 4.92:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #DE133B | 4.26:1 | AA large text | Lc 32.3 | Non-text elements, placeholder text |
| #DE133B text on white | 4.92:1 | AA | Lc 71.8 | Content text, not long reading |
| #DE133B text on black | 4.26:1 | AA large text | Lc -29.9 | 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
#FFF2F2
oklch(97.1% 0.014 17.4)
-
Step 100
100
#FDE3E2
oklch(93.7% 0.029 20.3)
-
Step 200
200
#FCCBCA
oklch(88.4% 0.056 19.6)
-
Step 300
300
#FBA6A5
oklch(80.8% 0.101 20.3)
-
Step 400
400
#F47175
oklch(70.6% 0.161 20.3)
-
Step 500
500
#EC4151
oklch(63.1% 0.206 20.5)
-
Step 600
600 (this color)
#DE133B
oklch(57.4% 0.224 20.5)
-
Step 700
700
#B6002C
oklch(49.1% 0.197 20.5)
-
Step 800
800
#970023
oklch(42.8% 0.172 20.4)
-
Step 900
900
#791421
oklch(37.7% 0.134 20.4)
-
Step 950
950
#470F14
oklch(26.9% 0.085 20.1)
#DE133B 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) | #5D563A | 0.249 |
| Deuteranopia (no green cones) | #8C7F34 | 0.227 |
| Tritanopia (no blue cones) | #F40028 | 0.046 |
| Achromatopsia (no color) | #707070 | 0.226 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DE133B
#DE133B
oklch(57.4% 0.224 20.5)
- #008A90
#008A90
oklch(57.6% 0.098 200.2)
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 #DE133B, closest first.
No curated palette has a color within ΔE 0.04 of #DE133B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.004
- Lipstick #D5174E ΔE 0.030
- Cherry #CF0234 ΔE 0.034
- Red Pantone #EF233C ΔE 0.039
- Imperial Red #E63946 ΔE 0.042
- Ruby #CA0147 ΔE 0.049
- Pink Red #F5054F ΔE 0.051
- Cherry Red #F7022A ΔE 0.051
Use #DE133B 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.