#E3291D
Closest named color: Tomato Red (#EC2D01). oklch(59.1% 0.221 29.4), rgb(227, 41, 29).
Aa
Black text reads best on this color (4.60:1).
About this color
#E3291D is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.221 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.022 away. Black text reads best on it, at 4.60:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.221) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.60:1 |
| White text | 4.56:1 |
Values
| HEX | #E3291D |
| RGB | rgb(227, 41, 29) |
| HSL | hsl(4, 78%, 50%) |
| OKLCH | oklch(59.1% 0.221 29.4) |
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 #E3291D | 4.56:1 | AA | Lc -75.2 | Fine for body text |
| Black text on #E3291D | 4.60:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #E3291D text on white | 4.56:1 | AA | Lc 69.8 | Content text, not long reading |
| #E3291D text on black | 4.60:1 | AA | Lc -31.9 | 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 600.
-
Step 50
50
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC4
oklch(88.5% 0.056 29.2)
-
Step 300
300
#FAA89B
oklch(80.8% 0.099 29.3)
-
Step 400
400
#F37564
oklch(70.7% 0.158 29.5)
-
Step 500
500
#EB4737
oklch(63.2% 0.203 29.5)
-
Step 600
600 (this color)
#E3291D
oklch(59.1% 0.221 29.4)
-
Step 700
700
#B70200
oklch(49% 0.2 29.4)
-
Step 800
800
#960A05
oklch(42.7% 0.169 29.3)
-
Step 900
900
#791810
oklch(37.8% 0.133 29.5)
-
Step 950
950
#47110B
oklch(27% 0.084 29.8)
#E3291D 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) | #685C18 | 0.238 |
| Deuteranopia (no green cones) | #95840C | 0.215 |
| Tritanopia (no blue cones) | #FB002A | 0.048 |
| Achromatopsia (no color) | #767676 | 0.222 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3291D
#E3291D
oklch(59.1% 0.221 29.4)
- #008E9E
#008E9E
oklch(59.2% 0.102 208.7)
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 #E3291D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.022
- Red Pantone #EF233C ΔE 0.036
- Imperial Red #E63946 ΔE 0.036
- Vermillion #F4320C ΔE 0.039
- Crimson #DC143C ΔE 0.041
- Cherry Red #F7022A ΔE 0.041
- Fire Engine Red #FE0002 ΔE 0.051
- Red #FF0000 ΔE 0.052
Use #E3291D 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.