#A18013
Closest named color: Mustard Brown (#AC7E04). oklch(61.4% 0.121 89.6), rgb(161, 128, 19).
Aa
Black text reads best on this color (5.61:1).
About this color
#A18013 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 61%, its chroma 0.121 and its hue 90°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Brown (#AC7E04), ΔE 0.018 away. Black text reads best on it, at 5.61:1.
| Hue family | Browns |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.121) |
| Temperature | warm |
| Nearest name | Mustard Brown (#AC7E04) |
| Black text | 5.61:1 |
| White text | 3.74:1 |
Values
| HEX | #A18013 |
| RGB | rgb(161, 128, 19) |
| HSL | hsl(46, 79%, 35%) |
| OKLCH | oklch(61.4% 0.121 89.6) |
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 #A18013 | 3.74:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #A18013 | 5.61:1 | AA | Lc 39.3 | Non-text elements, placeholder text |
| #A18013 text on white | 3.74:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #A18013 text on black | 5.61:1 | AA | Lc -36.9 | 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 500.
-
Step 50
50
#F7F5F0
oklch(97% 0.007 88.6)
-
Step 100
100
#EEEADD
oklch(93.7% 0.018 92.7)
-
Step 200
200
#E2D9C1
oklch(88.6% 0.034 89.9)
-
Step 300
300
#D0BF95
oklch(80.8% 0.059 88.6)
-
Step 400
400
#B89E58
oklch(70.7% 0.095 89.5)
-
Step 500
500 (this color)
#A18013
oklch(61.4% 0.121 89.6)
-
Step 600
600
#8D6F00
oklch(55.5% 0.113 89.9)
-
Step 700
700
#775D00
oklch(49.1% 0.1 89.6)
-
Step 800
800
#624C00
oklch(42.8% 0.087 89.5)
-
Step 900
900
#523F00
oklch(37.8% 0.077 89.3)
-
Step 950
950
#302505
oklch(27% 0.049 89.5)
#A18013 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) | #907F00 | 0.030 |
| Deuteranopia (no green cones) | #98881C | 0.024 |
| Tritanopia (no blue cones) | #AF746D | 0.109 |
| Achromatopsia (no color) | #848484 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A18013
#A18013
oklch(61.4% 0.121 89.6)
- #6880CD
#6880CD
oklch(61.5% 0.12 269.5)
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 #A18013, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Brown #AC7E04 ΔE 0.018
- Bronze #A87900 ΔE 0.020
- Dark Mustard #A88905 ΔE 0.029
- Golden Brown #B27A01 ΔE 0.031
- Yellowy Brown #AE8B0C ΔE 0.038
- Dark Goldenrod #B8860B ΔE 0.043
- Hazel #8E7618 ΔE 0.044
- Coffee #A6814C ΔE 0.046
Use #A18013 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.