#E5451C
Closest named color: Deep Orange (#DC4D01). oklch(61.7% 0.203 34.6), rgb(229, 69, 28).
Aa
Black text reads best on this color (5.19:1).
About this color
#E5451C is a medium-dark, vivid red. In OKLCH its lightness is 62%, its chroma 0.203 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.024 away. Black text reads best on it, at 5.19:1.
| Hue family | Reds |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.203) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.19:1 |
| White text | 4.03:1 |
Values
| HEX | #E5451C |
| RGB | rgb(229, 69, 28) |
| HSL | hsl(12, 79%, 50%) |
| OKLCH | oklch(61.7% 0.203 34.6) |
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 #E5451C | 4.03:1 | AA large text | Lc -71.8 | Content text, not long reading |
| Black text on #E5451C | 5.19:1 | AA | Lc 37.8 | Non-text elements, placeholder text |
| #E5451C text on white | 4.03:1 | AA large text | Lc 66.3 | Content text, not long reading |
| #E5451C text on black | 5.19:1 | AA | Lc -35.3 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DD
oklch(93.6% 0.028 36.9)
-
Step 200
200
#FBCDC1
oklch(88.5% 0.055 35)
-
Step 300
300
#F9A996
oklch(80.8% 0.099 33.9)
-
Step 400
400
#F37759
oklch(70.8% 0.159 34.8)
-
Step 500
500 (this color)
#E5451C
oklch(61.7% 0.203 34.6)
-
Step 600
600
#CD3200
oklch(55.7% 0.197 34.6)
-
Step 700
700
#AD2900
oklch(49.1% 0.173 34.7)
-
Step 800
800
#8F2000
oklch(42.7% 0.151 34.7)
-
Step 900
900
#781A01
oklch(37.7% 0.132 34.6)
-
Step 950
950
#471206
oklch(27.1% 0.084 34.5)
#E5451C 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) | #766813 | 0.210 |
| Deuteranopia (no green cones) | #9D8B0E | 0.190 |
| Tritanopia (no blue cones) | #FC003E | 0.073 |
| Achromatopsia (no color) | #7E7E7E | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E5451C
#E5451C
oklch(61.7% 0.203 34.6)
- #0095AE
#0095AE
oklch(61.7% 0.109 215.2)
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 #E5451C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.024
- Tomato Red #EC2D01 ΔE 0.028
- Vermillion #F4320C ΔE 0.031
- Orangey Red #FA4224 ΔE 0.041
- Pale Red #D9544D ΔE 0.044
- Red Orange #FD3C06 ΔE 0.044
- Imperial Red #E63946 ΔE 0.045
- Orangered #FE420F ΔE 0.047
Use #E5451C 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.