#B70729
Closest named color: Scarlet (#BE0119). oklch(49.4% 0.196 21.9), rgb(183, 7, 41).
Aa
White text reads best on this color (6.82:1).
About this color
#B70729 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.196 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.020 away. White text reads best on it, at 6.82:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.196) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #B70729 |
| RGB | rgb(183, 7, 41) |
| HSL | hsl(348, 93%, 37%) |
| OKLCH | oklch(49.4% 0.196 21.9) |
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 #B70729 | 6.82:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #B70729 | 3.07:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #B70729 text on white | 6.82:1 | AA | Lc 81.2 | Fine for body text |
| #B70729 text on black | 3.07:1 | AA large text | Lc -20.7 | 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
#F8A8A5
oklch(80.8% 0.095 21.8)
-
Step 400
400
#F07575
oklch(70.6% 0.152 21.7)
-
Step 500
500
#E74951
oklch(63.1% 0.194 22)
-
Step 600
600
#D31C35
oklch(55.7% 0.211 22.1)
-
Step 700
700 (this color)
#B70729
oklch(49.4% 0.196 21.9)
-
Step 800
800
#941022
oklch(42.8% 0.163 22.2)
-
Step 900
900
#771A21
oklch(37.8% 0.127 22)
-
Step 950
950
#461114
oklch(27% 0.081 21.3)
#B70729 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) | #4B4428 | 0.218 |
| Deuteranopia (no green cones) | #736722 | 0.198 |
| Tritanopia (no blue cones) | #CA001A | 0.041 |
| Achromatopsia (no color) | #5B5B5B | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B70729
#B70729
oklch(49.4% 0.196 21.9)
- #006F76
#006F76
oklch(49.3% 0.084 202.5)
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 #B70729, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.020
- Lipstick Red #C0022F ΔE 0.020
- Firebrick #B22222 ΔE 0.023
- Rose Red #BE013C ΔE 0.027
- Rouge #AB1239 ΔE 0.031
- Rufous #AE2012 ΔE 0.033
- Brown #A52A2A ΔE 0.041
- Rust Red #AA2704 ΔE 0.047
Use #B70729 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.