#E33C1F
Closest named color: Tomato Red (#EC2D01). oklch(60.6% 0.208 32.2), rgb(227, 60, 31).
Aa
Black text reads best on this color (4.93:1).
About this color
#E33C1F is a medium-dark, vivid red. In OKLCH its lightness is 61%, its chroma 0.208 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.021 away. Black text reads best on it, at 4.93:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.208) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #E33C1F |
| RGB | rgb(227, 60, 31) |
| HSL | hsl(9, 78%, 51%) |
| OKLCH | oklch(60.6% 0.208 32.2) |
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 #E33C1F | 4.25:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #E33C1F | 4.93:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #E33C1F text on white | 4.25:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #E33C1F text on black | 4.93:1 | AA | Lc -33.7 | 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
#FDE3DE
oklch(93.6% 0.03 30.6)
-
Step 200
200
#FCCCC2
oklch(88.4% 0.056 31.8)
-
Step 300
300
#FBA897
oklch(80.8% 0.102 32.1)
-
Step 400
400
#F5745C
oklch(70.7% 0.164 32.2)
-
Step 500
500 (this color)
#E33C1F
oklch(60.6% 0.208 32.2)
-
Step 600
600
#D22500
oklch(55.6% 0.21 32.2)
-
Step 700
700
#B21E00
oklch(49.2% 0.185 32.2)
-
Step 800
800
#931700
oklch(42.7% 0.161 32.2)
-
Step 900
900
#791706
oklch(37.6% 0.135 32.2)
-
Step 950
950
#481007
oklch(27% 0.087 32)
#E33C1F 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) | #706318 | 0.219 |
| Deuteranopia (no green cones) | #998812 | 0.199 |
| Tritanopia (no blue cones) | #FA0038 | 0.061 |
| Achromatopsia (no color) | #7B7B7B | 0.209 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E33C1F
#E33C1F
oklch(60.6% 0.208 32.2)
- #0092A7
#0092A7
oklch(60.6% 0.106 212.4)
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 #E33C1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.021
- Vermillion #F4320C ΔE 0.032
- Deep Orange #DC4D01 ΔE 0.033
- Imperial Red #E63946 ΔE 0.037
- Red Pantone #EF233C ΔE 0.044
- Pale Red #D9544D ΔE 0.046
- Orangey Red #FA4224 ΔE 0.048
- Faded Red #D3494E ΔE 0.049
Use #E33C1F 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.