#A18736
Closest named color: Dark Mustard (#A88905). oklch(63.2% 0.104 91.2), rgb(161, 135, 54).
Aa
Black text reads best on this color (6.03:1).
About this color
#A18736 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 63%, its chroma 0.104 and its hue 91°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Mustard (#A88905), ΔE 0.027 away. Black text reads best on it, at 6.03:1.
| Hue family | Yellows |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.104) |
| Temperature | warm |
| Nearest name | Dark Mustard (#A88905) |
| Black text | 6.03:1 |
| White text | 3.48:1 |
Values
| HEX | #A18736 |
| RGB | rgb(161, 135, 54) |
| HSL | hsl(45, 50%, 42%) |
| OKLCH | oklch(63.2% 0.104 91.2) |
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 #A18736 | 3.48:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #A18736 | 6.03:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #A18736 text on white | 3.48:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #A18736 text on black | 6.03:1 | AA | Lc -39.4 | 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
#EDEADF
oklch(93.6% 0.015 94.2)
-
Step 200
200
#E0D9C5
oklch(88.5% 0.028 90.9)
-
Step 300
300
#CDC09C
oklch(80.9% 0.051 90.5)
-
Step 400
400
#B39F64
oklch(70.6% 0.081 91.4)
-
Step 500
500 (this color)
#A18736
oklch(63.2% 0.104 91.2)
-
Step 600
600
#8C7001
oklch(55.6% 0.113 91.3)
-
Step 700
700
#765E00
oklch(49.2% 0.101 91.4)
-
Step 800
800
#614C00
oklch(42.6% 0.087 90.4)
-
Step 900
900
#4F400F
oklch(37.7% 0.068 91.3)
-
Step 950
950
#2E260B
oklch(27.1% 0.043 92.8)
#A18736 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) | #95852D | 0.023 |
| Deuteranopia (no green cones) | #9C8D3A | 0.017 |
| Tritanopia (no blue cones) | #AE7C76 | 0.096 |
| Achromatopsia (no color) | #898989 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A18736
#A18736
oklch(63.2% 0.104 91.2)
- #7386C9
#7386C9
oklch(63.3% 0.104 271.1)
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 #A18736, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mustard #A88905 ΔE 0.027
- Mustard Brown #AC7E04 ΔE 0.030
- Dark Tan #AF884A ΔE 0.032
- Yellowy Brown #AE8B0C ΔE 0.033
- Coffee #A6814C ΔE 0.033
- Bronze #A87900 ΔE 0.038
- Dark Sand #A88F59 ΔE 0.040
- Dark Goldenrod #B8860B ΔE 0.040
Use #A18736 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.