#DE371B
Closest named color: Tomato Red (#EC2D01). oklch(59.2% 0.207 32), rgb(222, 55, 27).
Aa
Black text reads best on this color (4.66:1).
About this color
#DE371B is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.207 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.027 away. Black text reads best on it, at 4.66:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.207) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.66:1 |
| White text | 4.49:1 |
Values
| HEX | #DE371B |
| RGB | rgb(222, 55, 27) |
| HSL | hsl(9, 78%, 49%) |
| OKLCH | oklch(59.2% 0.207 32) |
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 #DE371B | 4.49:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #DE371B | 4.66:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #DE371B text on white | 4.49:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #DE371B text on black | 4.66:1 | AA | Lc -32.0 | Non-text elements, placeholder text |
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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F9CDC4
oklch(88.4% 0.052 31.6)
-
Step 300
300
#F7AB9B
oklch(81% 0.093 32.3)
-
Step 400
400
#EF7963
oklch(70.7% 0.15 32)
-
Step 500
500
#E54F36
oklch(63% 0.19 32)
-
Step 600
600 (this color)
#DE371B
oklch(59.2% 0.207 32)
-
Step 700
700
#B21D00
oklch(49.1% 0.186 32)
-
Step 800
800
#921802
oklch(42.6% 0.159 32.1)
-
Step 900
900
#761E0F
oklch(37.8% 0.125 32.2)
-
Step 950
950
#45130B
oklch(26.9% 0.079 31.6)
#DE371B 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) | #6C5F14 | 0.219 |
| Deuteranopia (no green cones) | #95840C | 0.198 |
| Tritanopia (no blue cones) | #F50033 | 0.057 |
| Achromatopsia (no color) | #777777 | 0.208 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DE371B
#DE371B
oklch(59.2% 0.207 32)
- #008EA1
#008EA1
oklch(59.3% 0.103 211.2)
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 #DE371B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.027
- Deep Orange #DC4D01 ΔE 0.037
- Imperial Red #E63946 ΔE 0.041
- Vermillion #F4320C ΔE 0.042
- Faded Red #D3494E ΔE 0.047
- Red Pantone #EF233C ΔE 0.048
- Pale Red #D9544D ΔE 0.051
- Crimson #DC143C ΔE 0.051
Use #DE371B 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.