#E55210
Closest named color: Deep Orange (#DC4D01). oklch(63.1% 0.194 39.5), rgb(229, 82, 16).
Aa
Black text reads best on this color (5.54:1).
About this color
#E55210 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.194 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.021 away. Black text reads best on it, at 5.54:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.194) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.54:1 |
| White text | 3.78:1 |
Values
| HEX | #E55210 |
| RGB | rgb(229, 82, 16) |
| HSL | hsl(19, 87%, 48%) |
| OKLCH | oklch(63.1% 0.194 39.5) |
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 #E55210 | 3.78:1 | AA large text | Lc -69.8 | Content text, not long reading |
| Black text on #E55210 | 5.54:1 | AA | Lc 39.8 | Non-text elements, placeholder text |
| #E55210 text on white | 3.78:1 | AA large text | Lc 64.3 | Content text, not long reading |
| #E55210 text on black | 5.54:1 | AA | Lc -37.4 | 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
#FEF3EF
oklch(97.2% 0.013 41.2)
-
Step 100
100
#FBE4DC
oklch(93.5% 0.028 40.2)
-
Step 200
200
#F9CEC0
oklch(88.5% 0.053 38.8)
-
Step 300
300
#F6AC93
oklch(80.9% 0.094 39.4)
-
Step 400
400
#EE7B54
oklch(70.6% 0.152 39.2)
-
Step 500
500 (this color)
#E55210
oklch(63.1% 0.194 39.5)
-
Step 600
600
#C44100
oklch(55.6% 0.177 39.3)
-
Step 700
700
#A53600
oklch(49% 0.155 39.6)
-
Step 800
800
#892B00
oklch(42.8% 0.136 39.4)
-
Step 900
900
#732300
oklch(37.7% 0.119 39.6)
-
Step 950
950
#451403
oklch(26.9% 0.08 39.2)
#E55210 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) | #7E6E00 | 0.192 |
| Deuteranopia (no green cones) | #A28F00 | 0.174 |
| Tritanopia (no blue cones) | #FC2447 | 0.085 |
| Achromatopsia (no color) | #838383 | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E55210
#E55210
oklch(63.1% 0.194 39.5)
- #0099B9
#0099B9
oklch(63.1% 0.115 219.7)
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 #E55210, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.021
- Orange Pant #FB5607 ΔE 0.044
- Orangey Red #FA4224 ΔE 0.045
- Rusty Orange #CD5909 ΔE 0.046
- Blood Orange #FE4B03 ΔE 0.046
- Vermillion #F4320C ΔE 0.047
- Orangered #FE420F ΔE 0.048
- Orange Red #FF4500 ΔE 0.048
Use #E55210 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.