#E55E28
Closest named color: Deep Orange (#DC4D01). oklch(64.7% 0.18 40.1), rgb(229, 94, 40).
Aa
Black text reads best on this color (5.96:1).
About this color
#E55E28 is a medium-light, vivid orange. In OKLCH its lightness is 65%, its chroma 0.180 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.039 away. Black text reads best on it, at 5.96:1.
| Hue family | Oranges |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.180) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.96:1 |
| White text | 3.52:1 |
Values
| HEX | #E55E28 |
| RGB | rgb(229, 94, 40) |
| HSL | hsl(17, 78%, 53%) |
| OKLCH | oklch(64.7% 0.18 40.1) |
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 #E55E28 | 3.52:1 | AA large text | Lc -67.4 | Content text, not long reading |
| Black text on #E55E28 | 5.96:1 | AA | Lc 42.1 | Non-text elements, placeholder text |
| #E55E28 text on white | 3.52:1 | AA large text | Lc 61.9 | Content text, not long reading |
| #E55E28 text on black | 5.96:1 | AA | Lc -39.8 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE5DD
oklch(93.7% 0.026 42.1)
-
Step 200
200
#F7CFC1
oklch(88.5% 0.049 40.2)
-
Step 300
300
#F3AE96
oklch(81% 0.088 40)
-
Step 400
400
#E97F59
oklch(70.7% 0.141 40.2)
-
Step 500
500 (this color)
#E55E28
oklch(64.7% 0.18 40.1)
-
Step 600
600
#C34300
oklch(55.7% 0.174 40.1)
-
Step 700
700
#A43700
oklch(49% 0.153 40.1)
-
Step 800
800
#882C00
oklch(42.7% 0.134 40.1)
-
Step 900
900
#722401
oklch(37.7% 0.117 40)
-
Step 950
950
#431605
oklch(26.9% 0.075 40.1)
#E55E28 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) | #85761F | 0.176 |
| Deuteranopia (no green cones) | #A69422 | 0.160 |
| Tritanopia (no blue cones) | #FC3C53 | 0.084 |
| Achromatopsia (no color) | #888888 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E55E28
#E55E28
oklch(64.7% 0.18 40.1)
- #009EC0
#009EC0
oklch(64.7% 0.118 220.4)
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 #E55E28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.039
- Orange Pant #FB5607 ΔE 0.040
- Chocolate #D2691E ΔE 0.041
- Burnt Sienna #E76F51 ΔE 0.042
- Bright Orange #FF5B00 ΔE 0.048
- Blood Orange #FE4B03 ΔE 0.049
- Terracota #CB6843 ΔE 0.049
- Terracotta #CA6641 ΔE 0.050
Use #E55E28 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.