#E3491A
Closest named color: Deep Orange (#DC4D01). oklch(61.8% 0.198 36), rgb(227, 73, 26).
Aa
Black text reads best on this color (5.23:1).
About this color
#E3491A is a medium-dark, vivid red. In OKLCH its lightness is 62%, its chroma 0.198 and its hue 36°. 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 5.23:1.
| Hue family | Reds |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.198) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.23:1 |
| White text | 4.01:1 |
Values
| HEX | #E3491A |
| RGB | rgb(227, 73, 26) |
| HSL | hsl(14, 79%, 50%) |
| OKLCH | oklch(61.8% 0.198 36) |
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 #E3491A | 4.01:1 | AA large text | Lc -71.7 | Content text, not long reading |
| Black text on #E3491A | 5.23:1 | AA | Lc 37.9 | Non-text elements, placeholder text |
| #E3491A text on white | 4.01:1 | AA large text | Lc 66.2 | Content text, not long reading |
| #E3491A text on black | 5.23:1 | AA | Lc -35.5 | 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
#FEF3EF
oklch(97.2% 0.013 41.2)
-
Step 100
100
#FCE4DD
oklch(93.6% 0.028 36.9)
-
Step 200
200
#FACDC1
oklch(88.4% 0.054 35.4)
-
Step 300
300
#F8AA95
oklch(80.8% 0.097 35.7)
-
Step 400
400
#F17959
oklch(70.8% 0.155 35.9)
-
Step 500
500 (this color)
#E3491A
oklch(61.8% 0.198 36)
-
Step 600
600
#CA3700
oklch(55.6% 0.191 36)
-
Step 700
700
#AB2D00
oklch(49.1% 0.169 35.9)
-
Step 800
800
#8D2400
oklch(42.7% 0.146 36.1)
-
Step 900
900
#771D00
oklch(37.8% 0.129 36.2)
-
Step 950
950
#461305
oklch(27% 0.082 36.3)
#E3491A 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) | #77690F | 0.204 |
| Deuteranopia (no green cones) | #9D8C0C | 0.185 |
| Tritanopia (no blue cones) | #FA0B41 | 0.078 |
| Achromatopsia (no color) | #7F7F7F | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3491A
#E3491A
oklch(61.8% 0.198 36)
- #0095B0
#0095B0
oklch(61.7% 0.11 216.6)
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 #E3491A, 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 0.034
- Vermillion #F4320C ΔE 0.037
- Pale Red #D9544D ΔE 0.043
- Orangey Red #FA4224 ΔE 0.044
- Red Orange #FD3C06 ΔE 0.048
- Rusty Orange #CD5909 ΔE 0.049
- Imperial Red #E63946 ΔE 0.050
Use #E3491A 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.