#A37318
Closest named color: Bronze (#A87900). oklch(59% 0.116 77.4), rgb(163, 115, 24).
Aa
Black text reads best on this color (5.02:1).
About this color
#A37318 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.116 and its hue 77°. Its hue sits on the warm side of the wheel. The nearest named color is Bronze (#A87900), ΔE 0.021 away. Black text reads best on it, at 5.02:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.116) |
| Temperature | warm |
| Nearest name | Bronze (#A87900) |
| Black text | 5.02:1 |
| White text | 4.18:1 |
Values
| HEX | #A37318 |
| RGB | rgb(163, 115, 24) |
| HSL | hsl(39, 74%, 37%) |
| OKLCH | oklch(59% 0.116 77.4) |
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 #A37318 | 4.18:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #A37318 | 5.02:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #A37318 text on white | 4.18:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #A37318 text on black | 5.02:1 | AA | Lc -33.1 | Non-text elements, placeholder text |
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
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#F0E9DF
oklch(93.7% 0.015 77.1)
-
Step 200
200
#E4D7C4
oklch(88.5% 0.029 77.5)
-
Step 300
300
#D4BD9B
oklch(80.9% 0.053 77.5)
-
Step 400
400
#BE9A64
oklch(70.7% 0.083 76.9)
-
Step 500
500
#AD8036
oklch(63% 0.106 77)
-
Step 600
600 (this color)
#A37318
oklch(59% 0.116 77.4)
-
Step 700
700
#815800
oklch(49.2% 0.103 77.4)
-
Step 800
800
#6A4700
oklch(42.6% 0.089 76.7)
-
Step 900
900
#563C0F
oklch(37.7% 0.069 76.9)
-
Step 950
950
#32230B
oklch(26.9% 0.043 76.7)
#A37318 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) | #857500 | 0.054 |
| Deuteranopia (no green cones) | #90811C | 0.047 |
| Tritanopia (no blue cones) | #B26662 | 0.098 |
| Achromatopsia (no color) | #7C7C7C | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37318
#A37318
oklch(59% 0.116 77.4)
- #4F7EC1
#4F7EC1
oklch(59% 0.115 257.3)
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 #A37318, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bronze #A87900 ΔE 0.021
- Caramel #AF6F09 ΔE 0.022
- Leather #AC7434 ΔE 0.027
- Golden Brown #B27A01 ΔE 0.034
- Mustard Brown #AC7E04 ΔE 0.036
- Hazel #8E7618 ΔE 0.036
- Umber #B26400 ΔE 0.042
- Brown Orange #B96902 ΔE 0.043
Use #A37318 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.