#DD3E10
Closest named color: Deep Orange (#DC4D01). oklch(59.6% 0.202 34.9), rgb(221, 62, 16).
Aa
Black text reads best on this color (4.77:1).
About this color
#DD3E10 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 0.025 away. Black text reads best on it, at 4.77:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.202) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 4.77:1 |
| White text | 4.40:1 |
Values
| HEX | #DD3E10 |
| RGB | rgb(221, 62, 16) |
| HSL | hsl(13, 86%, 46%) |
| OKLCH | oklch(59.6% 0.202 34.9) |
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 #DD3E10 | 4.40:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #DD3E10 | 4.77:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #DD3E10 text on white | 4.40:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #DD3E10 text on black | 4.77:1 | AA | Lc -32.6 | 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)
#DD3E10
oklch(59.6% 0.202 34.9)
-
Step 600
600
#CC3300
oklch(55.6% 0.195 34.9)
-
Step 700
700
#AD2A00
oklch(49.2% 0.173 35)
-
Step 800
800
#8F2100
oklch(42.8% 0.15 35)
-
Step 900
900
#781A01
oklch(37.7% 0.132 34.6)
-
Step 950
950
#471205
oklch(27.1% 0.084 35.3)
#DD3E10 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) | #6F6201 | 0.211 |
| Deuteranopia (no green cones) | #968500 | 0.190 |
| Tritanopia (no blue cones) | #F40037 | 0.068 |
| Achromatopsia (no color) | #787878 | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DD3E10
#DD3E10
oklch(59.6% 0.202 34.9)
- #008EA6
#008EA6
oklch(59.5% 0.105 215.2)
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 #DD3E10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.025
- Tomato Red #EC2D01 ΔE 0.030
- Vermillion #F4320C ΔE 0.043
- Imperial Red #E63946 ΔE 0.048
- Pale Red #D9544D ΔE 0.050
- Faded Red #D3494E ΔE 0.051
- Rusty Orange #CD5909 ΔE 0.052
- Dark Coral #CF524E ΔE 0.053
Use #DD3E10 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.