#E4541C
Closest named color: Deep Orange (#DC4D01). oklch(63.2% 0.19 38.8), rgb(228, 84, 28).
Aa
Black text reads best on this color (5.58:1).
About this color
#E4541C is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.190 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.023 away. Black text reads best on it, at 5.58:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.190) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.58:1 |
| White text | 3.76:1 |
Values
| HEX | #E4541C |
| RGB | rgb(228, 84, 28) |
| HSL | hsl(17, 79%, 50%) |
| OKLCH | oklch(63.2% 0.19 38.8) |
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 #E4541C | 3.76:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #E4541C | 5.58:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #E4541C text on white | 3.76:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #E4541C text on black | 5.58:1 | AA | Lc -37.5 | 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
#FBE4DD
oklch(93.6% 0.027 37.6)
-
Step 200
200
#F9CEC1
oklch(88.5% 0.052 37.5)
-
Step 300
300
#F5AC94
oklch(80.8% 0.093 39)
-
Step 400
400
#ED7C57
oklch(70.7% 0.149 38.7)
-
Step 500
500 (this color)
#E4541C
oklch(63.2% 0.19 38.8)
-
Step 600
600
#C54000
oklch(55.7% 0.179 38.9)
-
Step 700
700
#A63400
oklch(49% 0.158 38.7)
-
Step 800
800
#892A00
oklch(42.6% 0.137 39)
-
Step 900
900
#742200
oklch(37.8% 0.121 38.9)
-
Step 950
950
#451504
oklch(27.1% 0.079 39.3)
#E4541C 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) | #7E6F0F | 0.190 |
| Deuteranopia (no green cones) | #A19012 | 0.173 |
| Tritanopia (no blue cones) | #FB2A4A | 0.083 |
| Achromatopsia (no color) | #848484 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E4541C
#E4541C
oklch(63.2% 0.19 38.8)
- #0099B8
#0099B8
oklch(63.1% 0.114 219)
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 #E4541C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.023
- Orange Pant #FB5607 ΔE 0.045
- Rusty Orange #CD5909 ΔE 0.045
- Orangey Red #FA4224 ΔE 0.046
- Pale Red #D9544D ΔE 0.046
- Blood Orange #FE4B03 ΔE 0.047
- Vermillion #F4320C ΔE 0.049
- Chocolate #D2691E ΔE 0.049
Use #E4541C 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.