#B33935
Closest named color: Dull Red (#BB3F3F). oklch(52.2% 0.159 26.1), rgb(179, 57, 53).
Aa
White text reads best on this color (5.90:1).
About this color
#B33935 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.159 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.023 away. White text reads best on it, at 5.90:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.159) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.55:1 |
| White text | 5.90:1 |
Values
| HEX | #B33935 |
| RGB | rgb(179, 57, 53) |
| HSL | hsl(2, 54%, 45%) |
| OKLCH | oklch(52.2% 0.159 26.1) |
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 #B33935 | 5.90:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #B33935 | 3.55:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #B33935 text on white | 5.90:1 | AA | Lc 78.5 | Fine for body text |
| #B33935 text on black | 3.55:1 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F9E5E2
oklch(93.7% 0.022 27.8)
-
Step 200
200
#F4CFCA
oklch(88.5% 0.042 27)
-
Step 300
300
#EEAEA7
oklch(80.9% 0.076 25.9)
-
Step 400
400
#E38178
oklch(70.8% 0.122 26.1)
-
Step 500
500
#D85D55
oklch(63.2% 0.157 26.2)
-
Step 600
600
#C33E3A
oklch(55.6% 0.17 26.1)
-
Step 700
700 (this color)
#B33935
oklch(52.2% 0.159 26.1)
-
Step 800
800
#892825
oklch(42.7% 0.132 26.2)
-
Step 900
900
#6E2723
oklch(37.8% 0.102 26.3)
-
Step 950
950
#411815
oklch(27.1% 0.065 26.5)
#B33935 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) | #5B5334 | 0.169 |
| Deuteranopia (no green cones) | #796E31 | 0.157 |
| Tritanopia (no blue cones) | #C51639 | 0.049 |
| Achromatopsia (no color) | #646464 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B33935
#B33935
oklch(52.2% 0.159 26.1)
- #007883
#007883
oklch(52.3% 0.089 206)
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 #B33935, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.023
- Firebrick #B22222 ΔE 0.033
- Rusty Red #AF2F0D ΔE 0.034
- Dusty Red #B9484E ΔE 0.038
- Brown #A52A2A ΔE 0.042
- Sinopia #BB3E03 ΔE 0.042
- Rufous #AE2012 ΔE 0.043
- Brick #A03623 ΔE 0.044
Use #B33935 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.