#C40527
Closest named color: Lipstick Red (#C0022F). oklch(51.9% 0.208 23.3), rgb(196, 5, 39).
Aa
White text reads best on this color (6.17:1).
About this color
#C40527 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.208 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.013 away. White text reads best on it, at 6.17:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.208) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.39:1 |
| White text | 6.17:1 |
Values
| HEX | #C40527 |
| RGB | rgb(196, 5, 39) |
| HSL | hsl(349, 95%, 39%) |
| OKLCH | oklch(51.9% 0.208 23.3) |
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 #C40527 | 6.17:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #C40527 | 3.39:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #C40527 text on white | 6.17:1 | AA | Lc 78.2 | Fine for body text |
| #C40527 text on black | 3.39:1 | AA large text | Lc -23.5 | 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 700.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E1
oklch(93.6% 0.029 23)
-
Step 200
200
#FCCBC8
oklch(88.4% 0.056 22.4)
-
Step 300
300
#FBA7A2
oklch(80.9% 0.1 23.3)
-
Step 400
400
#F4726F
oklch(70.6% 0.161 23.4)
-
Step 500
500
#EC4349
oklch(63.2% 0.205 23.5)
-
Step 600
600
#D7042B
oklch(55.6% 0.223 23.4)
-
Step 700
700 (this color)
#C40527
oklch(51.9% 0.208 23.3)
-
Step 800
800
#97011B
oklch(42.7% 0.172 23.3)
-
Step 900
900
#79151C
oklch(37.7% 0.134 23.4)
-
Step 950
950
#470F11
oklch(26.9% 0.085 23.1)
#C40527 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) | #514926 | 0.230 |
| Deuteranopia (no green cones) | #7B6E1E | 0.208 |
| Tritanopia (no blue cones) | #D80019 | 0.043 |
| Achromatopsia (no color) | #616161 | 0.209 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C40527
#C40527
oklch(51.9% 0.208 23.3)
- #00777F
#00777F
oklch(51.9% 0.088 203)
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 #C40527, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.013
- Scarlet #BE0119 ΔE 0.017
- Cherry #CF0234 ΔE 0.026
- Rose Red #BE013C ΔE 0.029
- Firebrick #B22222 ΔE 0.038
- Ruby #CA0147 ΔE 0.039
- Rufous #AE2012 ΔE 0.049
- Dull Red #BB3F3F ΔE 0.054
Use #C40527 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.