#51333A
Closest named color: Purple Brown (#673A3F). oklch(35.9% 0.045 4.3), rgb(81, 51, 58).
Aa
White text reads best on this color (11.14:1).
About this color
#51333A is a dark, muted red. In OKLCH its lightness is 36%, its chroma 0.045 and its hue 4°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.050 away. White text reads best on it, at 11.14:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | muted (0.045) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.88:1 |
| White text | 11.14:1 |
Values
| HEX | #51333A |
| RGB | rgb(81, 51, 58) |
| HSL | hsl(346, 23%, 26%) |
| OKLCH | oklch(35.9% 0.045 4.3) |
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 #51333A | 11.14:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #51333A | 1.88:1 | Fails | Lc 8.2 | Not readable |
| #51333A text on white | 11.14:1 | AAA | Lc 95.7 | Preferred for body text |
| #51333A text on black | 1.88:1 | Fails | Lc 0.0 | Not readable |
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 900.
-
Step 50
50
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#F0E7E9
oklch(93.6% 0.01 2)
-
Step 200
200
#E5D4D7
oklch(88.5% 0.019 5.3)
-
Step 300
300
#D5B8BE
oklch(80.9% 0.034 3.8)
-
Step 400
400
#BE939C
oklch(70.6% 0.053 4.6)
-
Step 500
500
#AD7884
oklch(63% 0.068 4.3)
-
Step 600
600
#98616E
oklch(55.6% 0.073 4.3)
-
Step 700
700
#82505C
oklch(49.2% 0.069 4.3)
-
Step 800
800
#6A424B
oklch(42.8% 0.057 5.1)
-
Step 900
900 (this color)
#51333A
oklch(35.9% 0.045 4.3)
-
Step 950
950
#322125
oklch(27% 0.027 3.5)
#51333A 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) | #37383A | 0.049 |
| Deuteranopia (no green cones) | #3F3D39 | 0.044 |
| Tritanopia (no blue cones) | #563135 | 0.012 |
| Achromatopsia (no color) | #3B3B3B | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51333A
#51333A
oklch(35.9% 0.045 4.3)
- #1E4540
#1E4540
oklch(36% 0.045 184.4)
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 #51333A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.052
- Onyx #343A40 ΔE 0.054
- Gunmetal #293241 ΔE 0.074
- Space Cadet #2B2D42 ΔE 0.078
- Dark Blue Grey #1F3B4D ΔE 0.084
- Charcoal #264653 ΔE 0.084
- Dark Grey Blue #29465B ΔE 0.086
Use #51333A 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.