#E75A31
Closest named color: Deep Orange (#DC4D01). oklch(64.6% 0.184 36.5), rgb(231, 90, 49).
Aa
Black text reads best on this color (5.90:1).
About this color
#E75A31 is a medium-light, vivid red. In OKLCH its lightness is 65%, its chroma 0.184 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.038 away. Black text reads best on it, at 5.90:1.
| Hue family | Reds |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.184) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.90:1 |
| White text | 3.55:1 |
Values
| HEX | #E75A31 |
| RGB | rgb(231, 90, 49) |
| HSL | hsl(14, 79%, 55%) |
| OKLCH | oklch(64.6% 0.184 36.5) |
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 #E75A31 | 3.55:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #E75A31 | 5.90:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #E75A31 text on white | 3.55:1 | AA large text | Lc 62.2 | Content text, not long reading |
| #E75A31 text on black | 5.90:1 | AA | Lc -39.5 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FBE4DE
oklch(93.6% 0.027 35)
-
Step 200
200
#F8CEC2
oklch(88.4% 0.05 36.5)
-
Step 300
300
#F4AC98
oklch(80.8% 0.09 36.2)
-
Step 400
400
#EB7D5E
oklch(70.7% 0.143 36.6)
-
Step 500
500 (this color)
#E75A31
oklch(64.6% 0.184 36.5)
-
Step 600
600
#C93900
oklch(55.6% 0.188 36.5)
-
Step 700
700
#AA2F00
oklch(49.1% 0.166 36.6)
-
Step 800
800
#8C2500
oklch(42.6% 0.144 36.6)
-
Step 900
900
#732207
oklch(37.7% 0.119 36.9)
-
Step 950
950
#441508
oklch(27% 0.076 36.2)
#E75A31 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) | #82742B | 0.185 |
| Deuteranopia (no green cones) | #A5942C | 0.169 |
| Tritanopia (no blue cones) | #FE3652 | 0.077 |
| Achromatopsia (no color) | #888888 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E75A31
#E75A31
oklch(64.6% 0.184 36.5)
- #009EBB
#009EBB
oklch(64.5% 0.115 217)
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 #E75A31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.038
- Orange Pant #FB5607 ΔE 0.039
- Burnt Sienna #E76F51 ΔE 0.043
- Pale Red #D9544D ΔE 0.044
- Orangey Red #FA4224 ΔE 0.044
- Blood Orange #FE4B03 ΔE 0.044
- Pastel Red #DB5856 ΔE 0.045
- Orangered #FE420F ΔE 0.048
Use #E75A31 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.