#B53F30
Closest named color: Dull Red (#BB3F3F). oklch(53.2% 0.156 30.2), rgb(181, 63, 48).
Aa
White text reads best on this color (5.64:1).
About this color
#B53F30 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.156 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.021 away. White text reads best on it, at 5.64:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.71:1 |
| White text | 5.64:1 |
Values
| HEX | #B53F30 |
| RGB | rgb(181, 63, 48) |
| HSL | hsl(7, 58%, 45%) |
| OKLCH | oklch(53.2% 0.156 30.2) |
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 #B53F30 | 5.64:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #B53F30 | 3.71:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #B53F30 text on white | 5.64:1 | AA | Lc 77.3 | Fine for body text |
| #B53F30 text on black | 3.71:1 | AA large text | Lc -24.5 | 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 600.
-
Step 50
50
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F7E5E2
oklch(93.5% 0.02 28.9)
-
Step 200
200
#F2D0CA
oklch(88.5% 0.039 29.7)
-
Step 300
300
#EAB0A6
oklch(80.8% 0.07 29.8)
-
Step 400
400
#DE8576
oklch(70.8% 0.113 30.4)
-
Step 500
500
#D26353
oklch(63.1% 0.144 30)
-
Step 600
600 (this color)
#B53F30
oklch(53.2% 0.156 30.2)
-
Step 700
700
#A33729
oklch(49.1% 0.145 30.4)
-
Step 800
800
#842F23
oklch(42.7% 0.12 30.6)
-
Step 900
900
#6B2B22
oklch(37.8% 0.094 30.1)
-
Step 950
950
#3F1A14
oklch(27.1% 0.059 30.8)
#B53F30 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) | #60572E | 0.163 |
| Deuteranopia (no green cones) | #7D712C | 0.150 |
| Tritanopia (no blue cones) | #C7203C | 0.054 |
| Achromatopsia (no color) | #676767 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B53F30
#B53F30
oklch(53.2% 0.156 30.2)
- #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 #B53F30, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.021
- Sinopia #BB3E03 ΔE 0.030
- Rusty Red #AF2F0D ΔE 0.036
- Dusty Red #B9484E ΔE 0.036
- Firebrick #B22222 ΔE 0.044
- Brick Orange #C14A09 ΔE 0.046
- Brick #A03623 ΔE 0.050
- Rufous #AE2012 ΔE 0.051
Use #B53F30 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.