#C70B00
Closest named color: Scarlet (#BE0119). oklch(52.4% 0.211 29.8), rgb(199, 11, 0).
Aa
White text reads best on this color (6.04:1).
About this color
#C70B00 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.211 and its hue 30°. 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 6.04:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.211) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.47:1 |
| White text | 6.04:1 |
Values
| HEX | #C70B00 |
| RGB | rgb(199, 11, 0) |
| HSL | hsl(3, 100%, 39%) |
| OKLCH | oklch(52.4% 0.211 29.8) |
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 #C70B00 | 6.04:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #C70B00 | 3.47:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #C70B00 text on white | 6.04:1 | AA | Lc 77.6 | Fine for body text |
| #C70B00 text on black | 3.47:1 | AA large text | Lc -24.1 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FACDC5
oklch(88.5% 0.052 29.9)
-
Step 300
300
#F8AA9C
oklch(81% 0.095 30.5)
-
Step 400
400
#F07866
oklch(70.7% 0.151 30.1)
-
Step 500
500
#E74C3B
oklch(63.1% 0.194 29.7)
-
Step 600
600 (this color)
#C70B00
oklch(52.4% 0.211 29.8)
-
Step 700
700
#B60D02
oklch(49.1% 0.196 29.9)
-
Step 800
800
#94140A
oklch(42.8% 0.163 29.8)
-
Step 900
900
#771C13
oklch(37.8% 0.127 29.8)
-
Step 950
950
#46120C
oklch(27% 0.081 29.8)
#C70B00 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) | #554A00 | 0.230 |
| Deuteranopia (no green cones) | #7F7000 | 0.204 |
| Tritanopia (no blue cones) | #DC0010 | 0.043 |
| Achromatopsia (no color) | #636363 | 0.213 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C70B00
#C70B00
oklch(52.4% 0.211 29.8)
- #007887
#007887
oklch(52.5% 0.091 209.9)
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 #C70B00, closest first.
No curated palette has a color within ΔE 0.04 of #C70B00.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.024
- Lipstick Red #C0022F ΔE 0.036
- Cherry #CF0234 ΔE 0.039
- Firebrick #B22222 ΔE 0.043
- Rufous #AE2012 ΔE 0.049
- Rusty Red #AF2F0D ΔE 0.050
- Rose Red #BE013C ΔE 0.053
- Sinopia #BB3E03 ΔE 0.053
Use #C70B00 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.