#D42100
Closest named color: Cherry (#CF0234). oklch(55.8% 0.214 31.6), rgb(212, 33, 0).
Aa
White text reads best on this color (5.22:1).
About this color
#D42100 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.214 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.045 away. White text reads best on it, at 5.22:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.214) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 4.01:1 |
| White text | 5.22:1 |
Values
| HEX | #D42100 |
| RGB | rgb(212, 33, 0) |
| HSL | hsl(9, 100%, 42%) |
| OKLCH | oklch(55.8% 0.214 31.6) |
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 #D42100 | 5.22:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #D42100 | 4.01:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #D42100 text on white | 5.22:1 | AA | Lc 73.9 | Content text, not long reading |
| #D42100 text on black | 4.01:1 | AA large text | Lc -27.8 | 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
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FACDC4
oklch(88.5% 0.053 31.3)
-
Step 300
300
#F8AA9A
oklch(80.9% 0.096 32)
-
Step 400
400
#F17762
oklch(70.7% 0.154 31.3)
-
Step 500
500
#E84C34
oklch(63.1% 0.196 31.5)
-
Step 600
600 (this color)
#D42100
oklch(55.8% 0.214 31.6)
-
Step 700
700
#B31A00
oklch(49.1% 0.188 31.6)
-
Step 800
800
#941400
oklch(42.7% 0.164 31.6)
-
Step 900
900
#771B0D
oklch(37.7% 0.129 31.6)
-
Step 950
950
#46120A
oklch(26.9% 0.081 31.5)
#D42100 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) | #605300 | 0.229 |
| Deuteranopia (no green cones) | #8A7A00 | 0.204 |
| Tritanopia (no blue cones) | #EA001F | 0.046 |
| Achromatopsia (no color) | #6C6C6C | 0.215 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D42100
#D42100
oklch(55.8% 0.214 31.6)
- #008294
#008294
oklch(55.7% 0.097 211.6)
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 #D42100, closest first.
No curated palette has a color within ΔE 0.04 of #D42100.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.045
- Crimson #DC143C ΔE 0.046
- Tomato Red #EC2D01 ΔE 0.053
- Sinopia #BB3E03 ΔE 0.054
- Scarlet #BE0119 ΔE 0.057
- Brick Orange #C14A09 ΔE 0.059
- Dull Red #BB3F3F ΔE 0.060
- Lipstick Red #C0022F ΔE 0.062
Use #D42100 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.