#D42C09
Closest named color: Tomato Red (#EC2D01). oklch(56.5% 0.207 32.4), rgb(212, 44, 9).
Aa
White text reads best on this color (5.04:1).
About this color
#D42C09 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.207 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.048 away. White text reads best on it, at 5.04:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.207) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.16:1 |
| White text | 5.04:1 |
Values
| HEX | #D42C09 |
| RGB | rgb(212, 44, 9) |
| HSL | hsl(10, 92%, 43%) |
| OKLCH | oklch(56.5% 0.207 32.4) |
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 #D42C09 | 5.04:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #D42C09 | 4.16:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #D42C09 text on white | 5.04:1 | AA | Lc 73.1 | Content text, not long reading |
| #D42C09 text on black | 4.16:1 | AA large text | Lc -28.6 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F9CDC4
oklch(88.4% 0.052 31.6)
-
Step 300
300
#F7AB9B
oklch(81% 0.093 32.3)
-
Step 400
400
#EE7963
oklch(70.6% 0.149 32)
-
Step 500
500
#E55035
oklch(63.1% 0.19 32.5)
-
Step 600
600 (this color)
#D42C09
oklch(56.5% 0.207 32.4)
-
Step 700
700
#B11F00
oklch(49.1% 0.184 32.4)
-
Step 800
800
#921801
oklch(42.6% 0.159 32.3)
-
Step 900
900
#751E0E
oklch(37.6% 0.124 32.6)
-
Step 950
950
#45130B
oklch(26.9% 0.079 31.6)
#D42C09 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) | #645700 | 0.220 |
| Deuteranopia (no green cones) | #8C7C00 | 0.197 |
| Tritanopia (no blue cones) | #EA0028 | 0.051 |
| Achromatopsia (no color) | #6F6F6F | 0.208 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D42C09
#D42C09
oklch(56.5% 0.207 32.4)
- #008598
#008598
oklch(56.6% 0.099 212.2)
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 #D42C09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.048
- Crimson #DC143C ΔE 0.049
- Sinopia #BB3E03 ΔE 0.051
- Cherry #CF0234 ΔE 0.051
- Brick Orange #C14A09 ΔE 0.052
- Deep Orange #DC4D01 ΔE 0.055
- Dull Red #BB3F3F ΔE 0.058
- Faded Red #D3494E ΔE 0.058
Use #D42C09 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.