#B5002A
Closest named color: Lipstick Red (#C0022F). oklch(48.9% 0.197 21), rgb(181, 0, 42).
Aa
White text reads best on this color (7.00:1).
About this color
#B5002A is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.197 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.024 away. White text reads best on it, at 7.00:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.197) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #B5002A |
| RGB | rgb(181, 0, 42) |
| HSL | hsl(346, 100%, 35%) |
| OKLCH | oklch(48.9% 0.197 21) |
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 #B5002A | 7.00:1 | AAA | Lc -86.7 | Fine for body text |
| Black text on #B5002A | 2.99:1 | Fails | Lc 22.4 | Dividers and decoration only |
| #B5002A text on white | 7.00:1 | AAA | Lc 81.6 | Fine for body text |
| #B5002A text on black | 2.99:1 | Fails | Lc -20.3 | 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
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FACCCA
oklch(88.4% 0.052 21.1)
-
Step 300
300
#F8A8A6
oklch(80.9% 0.095 20.9)
-
Step 400
400
#F07577
oklch(70.6% 0.152 20.7)
-
Step 500
500
#E74953
oklch(63.1% 0.194 21.2)
-
Step 600
600
#D31B38
oklch(55.7% 0.212 21.1)
-
Step 700
700 (this color)
#B5002A
oklch(48.9% 0.197 21)
-
Step 800
800
#940F24
oklch(42.8% 0.163 21.2)
-
Step 900
900
#771922
oklch(37.7% 0.128 21)
-
Step 950
950
#461114
oklch(27% 0.081 21.3)
#B5002A 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) | #484229 | 0.220 |
| Deuteranopia (no green cones) | #716523 | 0.198 |
| Tritanopia (no blue cones) | #C80018 | 0.044 |
| Achromatopsia (no color) | #595959 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5002A
#B5002A
oklch(48.9% 0.197 21)
- #006E73
#006E73
oklch(48.9% 0.083 200.3)
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 #B5002A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.024
- Scarlet #BE0119 ΔE 0.025
- Rouge #AB1239 ΔE 0.026
- Firebrick #B22222 ΔE 0.027
- Rose Red #BE013C ΔE 0.028
- Rufous #AE2012 ΔE 0.035
- Brown #A52A2A ΔE 0.040
- Raspberry #B00149 ΔE 0.043
Use #B5002A 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.