#E54B10
Closest named color: Deep Orange (#DC4D01). oklch(62.3% 0.2 37.5), rgb(229, 75, 16).
Aa
Black text reads best on this color (5.34:1).
About this color
#E54B10 is a medium-light, vivid red. In OKLCH its lightness is 62%, its chroma 0.200 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.018 away. Black text reads best on it, at 5.34:1.
| Hue family | Reds |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.200) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.34:1 |
| White text | 3.92:1 |
Values
| HEX | #E54B10 |
| RGB | rgb(229, 75, 16) |
| HSL | hsl(17, 87%, 48%) |
| OKLCH | oklch(62.3% 0.2 37.5) |
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 #E54B10 | 3.92:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #E54B10 | 5.34:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #E54B10 text on white | 3.92:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #E54B10 text on black | 5.34:1 | AA | Lc -36.2 | 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
#FCE4DD
oklch(93.6% 0.028 36.9)
-
Step 200
200
#FACEC0
oklch(88.6% 0.054 38.4)
-
Step 300
300
#F8AB93
oklch(81% 0.097 38)
-
Step 400
400
#F17955
oklch(70.8% 0.156 37.5)
-
Step 500
500 (this color)
#E54B10
oklch(62.3% 0.2 37.5)
-
Step 600
600
#C73C00
oklch(55.6% 0.184 37.5)
-
Step 700
700
#A83100
oklch(49% 0.162 37.4)
-
Step 800
800
#8B2700
oklch(42.7% 0.141 37.5)
-
Step 900
900
#752000
oklch(37.7% 0.124 37.7)
-
Step 950
950
#461303
oklch(27% 0.082 38)
#E54B10 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) | #796A00 | 0.203 |
| Deuteranopia (no green cones) | #9F8D00 | 0.183 |
| Tritanopia (no blue cones) | #FC0F42 | 0.082 |
| Achromatopsia (no color) | #808080 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E54B10
#E54B10
oklch(62.3% 0.2 37.5)
- #0097B3
#0097B3
oklch(62.4% 0.111 217.1)
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 #E54B10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.018
- Tomato Red #EC2D01 ΔE 0.037
- Vermillion #F4320C ΔE 0.038
- Orangey Red #FA4224 ΔE 0.042
- Red Orange #FD3C06 ΔE 0.045
- Orangered #FE420F ΔE 0.047
- Pale Red #D9544D ΔE 0.048
- Blood Orange #FE4B03 ΔE 0.048
Use #E54B10 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.