#C91500
Closest named color: Scarlet (#BE0119). oklch(53.1% 0.21 30.5), rgb(201, 21, 0).
Aa
White text reads best on this color (5.84:1).
About this color
#C91500 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.210 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.031 away. White text reads best on it, at 5.84:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.210) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.59:1 |
| White text | 5.84:1 |
Values
| HEX | #C91500 |
| RGB | rgb(201, 21, 0) |
| HSL | hsl(6, 100%, 39%) |
| OKLCH | oklch(53.1% 0.21 30.5) |
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 #C91500 | 5.84:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #C91500 | 3.59:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #C91500 text on white | 5.84:1 | AA | Lc 76.9 | Fine for body text |
| #C91500 text on black | 3.59:1 | AA large text | Lc -24.8 | 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
#FACDC5
oklch(88.5% 0.052 29.9)
-
Step 300
300
#F7AA9C
oklch(80.9% 0.094 30.6)
-
Step 400
400
#F07865
oklch(70.7% 0.152 30.5)
-
Step 500
500
#E74D39
oklch(63.1% 0.194 30.5)
-
Step 600
600 (this color)
#C91500
oklch(53.1% 0.21 30.5)
-
Step 700
700
#B51200
oklch(49.1% 0.194 30.6)
-
Step 800
800
#931507
oklch(42.6% 0.161 30.5)
-
Step 900
900
#761C12
oklch(37.6% 0.126 30.2)
-
Step 950
950
#46130C
oklch(27.1% 0.08 30.7)
#C91500 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) | #584C00 | 0.226 |
| Deuteranopia (no green cones) | #817200 | 0.202 |
| Tritanopia (no blue cones) | #DE0016 | 0.043 |
| Achromatopsia (no color) | #656565 | 0.211 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C91500
#C91500
oklch(53.1% 0.21 30.5)
- #007A8A
#007A8A
oklch(53.1% 0.092 210.7)
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 #C91500, closest first.
No curated palette has a color within ΔE 0.04 of #C91500.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.031
- Cherry #CF0234 ΔE 0.040
- Lipstick Red #C0022F ΔE 0.041
- Firebrick #B22222 ΔE 0.047
- Sinopia #BB3E03 ΔE 0.049
- Rusty Red #AF2F0D ΔE 0.052
- Rufous #AE2012 ΔE 0.054
- Dull Red #BB3F3F ΔE 0.055
Use #C91500 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.