#C01E00
Closest named color: Scarlet (#BE0119). oklch(51.8% 0.198 31.7), rgb(192, 30, 0).
Aa
White text reads best on this color (6.12:1).
About this color
#C01E00 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.198 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.025 away. White text reads best on it, at 6.12:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.198) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.42:1 |
| White text | 6.12:1 |
Values
| HEX | #C01E00 |
| RGB | rgb(192, 30, 0) |
| HSL | hsl(9, 100%, 38%) |
| OKLCH | oklch(51.8% 0.198 31.7) |
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 #C01E00 | 6.12:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #C01E00 | 3.42:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #C01E00 text on white | 6.12:1 | AA | Lc 78.6 | Fine for body text |
| #C01E00 text on black | 3.42:1 | AA large text | Lc -23.2 | 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 700.
-
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
#F07862
oklch(70.7% 0.152 31.8)
-
Step 500
500
#E84C34
oklch(63.1% 0.196 31.5)
-
Step 600
600
#D32200
oklch(55.6% 0.212 31.7)
-
Step 700
700 (this color)
#C01E00
oklch(51.8% 0.198 31.7)
-
Step 800
800
#941500
oklch(42.8% 0.163 31.8)
-
Step 900
900
#771C0D
oklch(37.8% 0.128 32)
-
Step 950
950
#46120A
oklch(26.9% 0.081 31.5)
#C01E00 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) | #564B00 | 0.213 |
| Deuteranopia (no green cones) | #7D6E00 | 0.188 |
| Tritanopia (no blue cones) | #D4001C | 0.043 |
| Achromatopsia (no color) | #626262 | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C01E00
#C01E00
oklch(51.8% 0.198 31.7)
- #007686
#007686
oklch(51.9% 0.09 211.1)
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 #C01E00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.025
- Firebrick #B22222 ΔE 0.033
- Rusty Red #AF2F0D ΔE 0.034
- Rufous #AE2012 ΔE 0.037
- Lipstick Red #C0022F ΔE 0.040
- Sinopia #BB3E03 ΔE 0.041
- Rust Red #AA2704 ΔE 0.044
- Cherry #CF0234 ΔE 0.050
Use #C01E00 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.