#573307
Closest named color: Mud Brown (#60460F). oklch(35.8% 0.075 65), rgb(87, 51, 7).
Aa
White text reads best on this color (11.15:1).
About this color
#573307 is a dark, moderately saturated brown. In OKLCH its lightness is 36%, its chroma 0.075 and its hue 65°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.059 away. White text reads best on it, at 11.15:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.075) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.88:1 |
| White text | 11.15:1 |
Values
| HEX | #573307 |
| RGB | rgb(87, 51, 7) |
| HSL | hsl(33, 85%, 18%) |
| OKLCH | oklch(35.8% 0.075 65) |
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 #573307 | 11.15:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #573307 | 1.88:1 | Fails | Lc 8.4 | Not readable |
| #573307 text on white | 11.15:1 | AAA | Lc 95.5 | Preferred for body text |
| #573307 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
#F9F4F0
oklch(97% 0.008 61.5)
-
Step 100
100
#F2E8DF
oklch(93.6% 0.016 64.7)
-
Step 200
200
#E8D5C4
oklch(88.4% 0.031 64.3)
-
Step 300
300
#DBBA9B
oklch(81% 0.057 65.1)
-
Step 400
400
#C89563
oklch(70.7% 0.09 64.9)
-
Step 500
500
#B97935
oklch(63.1% 0.115 64.4)
-
Step 600
600
#A46100
oklch(55.6% 0.125 64.9)
-
Step 700
700
#8A5100
oklch(49% 0.11 65.1)
-
Step 800
800
#724200
oklch(42.7% 0.096 65.1)
-
Step 900
900 (this color)
#573307
oklch(35.8% 0.075 65)
-
Step 950
950
#36210B
oklch(26.9% 0.047 64.6)
#573307 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) | #3E3601 | 0.051 |
| Deuteranopia (no green cones) | #473F08 | 0.045 |
| Tritanopia (no blue cones) | #602B2B | 0.056 |
| Achromatopsia (no color) | #3B3B3B | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573307
#573307
oklch(35.8% 0.075 65)
- #134061
#134061
oklch(35.9% 0.075 244.6)
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 #573307, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.059
- Chestnut #742802 ΔE 0.062
- Dark Olive #373E02 ΔE 0.068
- Purple Brown #673A3F ΔE 0.078
- Reddy Brown #6E1005 ΔE 0.079
- Green Brown #544E03 ΔE 0.081
- Charcoal Grey #3C4142 ΔE 0.082
- Pakistan Green #283618 ΔE 0.085
Use #573307 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.