#DE3F10
Closest named color: Deep Orange (#DC4D01). oklch(59.9% 0.202 35.1), rgb(222, 63, 16).
Aa
Black text reads best on this color (4.82:1).
About this color
#DE3F10 is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.202 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.024 away. Black text reads best on it, at 4.82:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.202) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #DE3F10 |
| RGB | rgb(222, 63, 16) |
| HSL | hsl(14, 87%, 47%) |
| OKLCH | oklch(59.9% 0.202 35.1) |
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 #DE3F10 | 4.35:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #DE3F10 | 4.82:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #DE3F10 text on white | 4.35:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #DE3F10 text on black | 4.82:1 | AA | Lc -32.9 | 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 500.
-
Step 50
50
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DD
oklch(93.6% 0.028 36.9)
-
Step 200
200
#FBCDC1
oklch(88.5% 0.055 35)
-
Step 300
300
#F9AA95
oklch(80.9% 0.098 35.5)
-
Step 400
400
#F27759
oklch(70.7% 0.158 34.9)
-
Step 500
500 (this color)
#DE3F10
oklch(59.9% 0.202 35.1)
-
Step 600
600
#CC3400
oklch(55.7% 0.195 35.1)
-
Step 700
700
#AC2A00
oklch(49% 0.172 35)
-
Step 800
800
#8E2100
oklch(42.6% 0.149 35.1)
-
Step 900
900
#781A00
oklch(37.7% 0.132 34.9)
-
Step 950
950
#471205
oklch(27.1% 0.084 35.3)
#DE3F10 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) | #706201 | 0.211 |
| Deuteranopia (no green cones) | #978600 | 0.190 |
| Tritanopia (no blue cones) | #F50038 | 0.069 |
| Achromatopsia (no color) | #797979 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DE3F10
#DE3F10
oklch(59.9% 0.202 35.1)
- #008FA7
#008FA7
oklch(59.8% 0.106 215.1)
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 #DE3F10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.024
- Tomato Red #EC2D01 ΔE 0.029
- Vermillion #F4320C ΔE 0.042
- Imperial Red #E63946 ΔE 0.048
- Pale Red #D9544D ΔE 0.049
- Faded Red #D3494E ΔE 0.051
- Rusty Orange #CD5909 ΔE 0.051
- Dark Coral #CF524E ΔE 0.053
Use #DE3F10 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.