#E3421C
Closest named color: Deep Orange (#DC4D01). oklch(61.1% 0.203 34), rgb(227, 66, 28).
Aa
Black text reads best on this color (5.06:1).
About this color
#E3421C is a medium-dark, vivid red. In OKLCH its lightness is 61%, its chroma 0.203 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.025 away. Black text reads best on it, at 5.06:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.203) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.06:1 |
| White text | 4.14:1 |
Values
| HEX | #E3421C |
| RGB | rgb(227, 66, 28) |
| HSL | hsl(11, 78%, 50%) |
| OKLCH | oklch(61.1% 0.203 34) |
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 #E3421C | 4.14:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #E3421C | 5.06:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #E3421C text on white | 4.14:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #E3421C text on black | 5.06:1 | AA | Lc -34.5 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE4DD
oklch(93.6% 0.028 36.9)
-
Step 200
200
#FBCDC1
oklch(88.5% 0.055 35)
-
Step 300
300
#FAA996
oklch(80.9% 0.1 33.8)
-
Step 400
400
#F3765A
oklch(70.7% 0.16 34)
-
Step 500
500 (this color)
#E3421C
oklch(61.1% 0.203 34)
-
Step 600
600
#CE2F00
oklch(55.6% 0.2 34)
-
Step 700
700
#AE2600
oklch(49% 0.177 33.9)
-
Step 800
800
#901E00
oklch(42.7% 0.153 34)
-
Step 900
900
#781A03
oklch(37.7% 0.132 34.1)
-
Step 950
950
#471206
oklch(27.1% 0.084 34.5)
#E3421C 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) | #736613 | 0.213 |
| Deuteranopia (no green cones) | #9B8A0E | 0.193 |
| Tritanopia (no blue cones) | #FA003C | 0.069 |
| Achromatopsia (no color) | #7C7C7C | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3421C
#E3421C
oklch(61.1% 0.203 34)
- #0093AB
#0093AB
oklch(61% 0.108 214.6)
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 #E3421C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.025
- Tomato Red #EC2D01 ΔE 0.025
- Vermillion #F4320C ΔE 0.033
- Imperial Red #E63946 ΔE 0.042
- Pale Red #D9544D ΔE 0.044
- Orangey Red #FA4224 ΔE 0.045
- Red Orange #FD3C06 ΔE 0.049
- Faded Red #D3494E ΔE 0.051
Use #E3421C 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.