#C01840
Closest named color: Rose Red (#BE013C). oklch(52.1% 0.197 16.2), rgb(192, 24, 64).
Aa
White text reads best on this color (6.09:1).
About this color
#C01840 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.197 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Rose Red (#BE013C), ΔE 0.014 away. White text reads best on it, at 6.09:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.197) |
| Temperature | warm |
| Nearest name | Rose Red (#BE013C) |
| Black text | 3.44:1 |
| White text | 6.09:1 |
Values
| HEX | #C01840 |
| RGB | rgb(192, 24, 64) |
| HSL | hsl(346, 78%, 42%) |
| OKLCH | oklch(52.1% 0.197 16.2) |
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 #C01840 | 6.09:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #C01840 | 3.44:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #C01840 text on white | 6.09:1 | AA | Lc 78.5 | Fine for body text |
| #C01840 text on black | 3.44:1 | AA large text | Lc -23.3 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E3
oklch(93.6% 0.028 17.7)
-
Step 200
200
#FACCCD
oklch(88.5% 0.052 16.7)
-
Step 300
300
#F8A8AB
oklch(81% 0.095 16.9)
-
Step 400
400
#F0747F
oklch(70.7% 0.153 16.3)
-
Step 500
500
#E7475F
oklch(63.1% 0.196 16.3)
-
Step 600
600
#D21946
oklch(55.6% 0.211 16.3)
-
Step 700
700 (this color)
#C01840
oklch(52.1% 0.197 16.2)
-
Step 800
800
#930D2E
oklch(42.7% 0.163 16.4)
-
Step 900
900
#761929
oklch(37.7% 0.126 16.5)
-
Step 950
950
#461118
oklch(27.1% 0.081 16.8)
#C01840 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) | #504C40 | 0.219 |
| Deuteranopia (no green cones) | #796E3B | 0.199 |
| Tritanopia (no blue cones) | #D3002B | 0.043 |
| Achromatopsia (no color) | #626262 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C01840
#C01840
oklch(52.1% 0.197 16.2)
- #00797A
#00797A
oklch(52.2% 0.089 195.8)
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 #C01840, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rose Red #BE013C ΔE 0.014
- Lipstick Red #C0022F ΔE 0.020
- Ruby #CA0147 ΔE 0.023
- Cherry #CF0234 ΔE 0.032
- Scarlet #BE0119 ΔE 0.039
- Raspberry #B00149 ΔE 0.045
- Firebrick #B22222 ΔE 0.046
- Lipstick #D5174E ΔE 0.046
Use #C01840 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.