#E00009
Closest named color: Crimson (#DC143C). oklch(57% 0.233 28.6), rgb(224, 0, 9).
Aa
White text reads best on this color (5.03:1).
About this color
#E00009 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.233 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.036 away. White text reads best on it, at 5.03:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.233) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #E00009 |
| RGB | rgb(224, 0, 9) |
| HSL | hsl(358, 100%, 44%) |
| OKLCH | oklch(57% 0.233 28.6) |
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 #E00009 | 5.03:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #E00009 | 4.17:1 | AA large text | Lc 32.3 | Non-text elements, placeholder text |
| #E00009 text on white | 5.03:1 | AA | Lc 71.8 | Content text, not long reading |
| #E00009 text on black | 4.17:1 | AA large text | Lc -29.9 | Dividers and decoration only |
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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FEE3DE
oklch(93.6% 0.031 30.2)
-
Step 200
200
#FECBC4
oklch(88.5% 0.059 27.4)
-
Step 300
300
#FDA79A
oklch(81% 0.104 29)
-
Step 400
400
#F77162
oklch(70.6% 0.167 28.5)
-
Step 500
500
#EF3F33
oklch(63% 0.214 28.7)
-
Step 600
600 (this color)
#E00009
oklch(57% 0.233 28.6)
-
Step 700
700
#B80006
oklch(49.2% 0.201 28.5)
-
Step 800
800
#980004
oklch(42.7% 0.175 28.5)
-
Step 900
900
#7B120D
oklch(37.7% 0.14 28.8)
-
Step 950
950
#490E0A
oklch(27% 0.089 28.5)
#E00009 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) | #5E5300 | 0.258 |
| Deuteranopia (no green cones) | #8F7E00 | 0.227 |
| Tritanopia (no blue cones) | #F8000E | 0.049 |
| Achromatopsia (no color) | #6F6F6F | 0.235 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E00009
#E00009
oklch(57% 0.233 28.6)
- #008796
#008796
oklch(57% 0.098 208.5)
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 #E00009, closest first.
No curated palette has a color within ΔE 0.04 of #E00009.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.036
- Tomato Red #EC2D01 ΔE 0.042
- Cherry #CF0234 ΔE 0.046
- Red Pantone #EF233C ΔE 0.049
- Cherry Red #F7022A ΔE 0.051
- Imperial Red #E63946 ΔE 0.055
- Vermillion #F4320C ΔE 0.059
- Lipstick #D5174E ΔE 0.061
Use #E00009 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.