#C81019
Closest named color: Scarlet (#BE0119). oklch(52.8% 0.209 27.2), rgb(200, 16, 25).
Aa
White text reads best on this color (5.92:1).
About this color
#C81019 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.209 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.024 away. White text reads best on it, at 5.92:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.209) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.54:1 |
| White text | 5.92:1 |
Values
| HEX | #C81019 |
| RGB | rgb(200, 16, 25) |
| HSL | hsl(357, 85%, 42%) |
| OKLCH | oklch(52.8% 0.209 27.2) |
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 #C81019 | 5.92:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #C81019 | 3.54:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #C81019 text on white | 5.92:1 | AA | Lc 77.3 | Fine for body text |
| #C81019 text on black | 3.54:1 | AA large text | Lc -24.5 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E0
oklch(93.5% 0.028 25.9)
-
Step 200
200
#FACDC7
oklch(88.6% 0.052 27)
-
Step 300
300
#F8A9A0
oklch(80.9% 0.095 26.5)
-
Step 400
400
#F0776C
oklch(70.7% 0.151 26.9)
-
Step 500
500
#E74C44
oklch(63.2% 0.193 27.1)
-
Step 600
600 (this color)
#C81019
oklch(52.8% 0.209 27.2)
-
Step 700
700
#B50D15
oklch(49% 0.194 27.3)
-
Step 800
800
#931415
oklch(42.7% 0.161 27.2)
-
Step 900
900
#761C18
oklch(37.7% 0.125 27.5)
-
Step 950
950
#46120F
oklch(27% 0.08 27.1)
#C81019 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) | #554B15 | 0.230 |
| Deuteranopia (no green cones) | #807109 | 0.206 |
| Tritanopia (no blue cones) | #DD0018 | 0.042 |
| Achromatopsia (no color) | #646464 | 0.211 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C81019
#C81019
oklch(52.8% 0.209 27.2)
- #007A86
#007A86
oklch(53% 0.091 206.8)
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 #C81019, closest first.
No curated palette has a color within ΔE 0.04 of #C81019.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.024
- Cherry #CF0234 ΔE 0.029
- Lipstick Red #C0022F ΔE 0.030
- Firebrick #B22222 ΔE 0.043
- Rose Red #BE013C ΔE 0.045
- Ruby #CA0147 ΔE 0.051
- Crimson #DC143C ΔE 0.052
- Rufous #AE2012 ΔE 0.052
Use #C81019 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.