#E55B19
Closest named color: Deep Orange (#DC4D01). oklch(64.2% 0.185 41.5), rgb(229, 91, 25).
Aa
Black text reads best on this color (5.84:1).
About this color
#E55B19 is a medium-light, vivid orange. In OKLCH its lightness is 64%, its chroma 0.185 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.033 away. Black text reads best on it, at 5.84:1.
| Hue family | Oranges |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.185) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.84:1 |
| White text | 3.59:1 |
Values
| HEX | #E55B19 |
| RGB | rgb(229, 91, 25) |
| HSL | hsl(19, 80%, 50%) |
| OKLCH | oklch(64.2% 0.185 41.5) |
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 #E55B19 | 3.59:1 | AA large text | Lc -68.1 | Content text, not long reading |
| Black text on #E55B19 | 5.84:1 | AA | Lc 41.5 | Non-text elements, placeholder text |
| #E55B19 text on white | 3.59:1 | AA large text | Lc 62.6 | Content text, not long reading |
| #E55B19 text on black | 5.84:1 | AA | Lc -39.1 | 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
#FDF3EF
oklch(97.1% 0.012 43.3)
-
Step 100
100
#FAE5DD
oklch(93.7% 0.026 42.1)
-
Step 200
200
#F7CFC0
oklch(88.5% 0.05 41.6)
-
Step 300
300
#F4AD93
oklch(80.9% 0.091 40.9)
-
Step 400
400
#EB7E54
oklch(70.7% 0.146 41.3)
-
Step 500
500 (this color)
#E55B19
oklch(64.2% 0.185 41.5)
-
Step 600
600
#C04600
oklch(55.6% 0.169 41.6)
-
Step 700
700
#A33A00
oklch(49.2% 0.15 41.5)
-
Step 800
800
#862E00
oklch(42.6% 0.13 41.4)
-
Step 900
900
#712600
oklch(37.8% 0.115 41.7)
-
Step 950
950
#441603
oklch(27% 0.077 41.5)
#E55B19 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) | #837307 | 0.181 |
| Deuteranopia (no green cones) | #A5930F | 0.164 |
| Tritanopia (no blue cones) | #FC364F | 0.088 |
| Achromatopsia (no color) | #878787 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E55B19
#E55B19
oklch(64.2% 0.185 41.5)
- #009CC0
#009CC0
oklch(64.2% 0.119 221.9)
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 #E55B19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.033
- Orange Pant #FB5607 ΔE 0.040
- Chocolate #D2691E ΔE 0.041
- Rusty Orange #CD5909 ΔE 0.047
- Blood Orange #FE4B03 ΔE 0.048
- Bright Orange #FF5B00 ΔE 0.049
- Burnt Sienna #E76F51 ΔE 0.050
- Orangey Red #FA4224 ΔE 0.052
Use #E55B19 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.