#A18D3E
Closest named color: Dark Mustard (#A88905). oklch(64.5% 0.102 95.2), rgb(161, 141, 62).
Aa
Black text reads best on this color (6.39:1).
About this color
#A18D3E is a medium-light, moderately saturated yellow. In OKLCH its lightness is 65%, its chroma 0.102 and its hue 95°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Mustard (#A88905), ΔE 0.029 away. Black text reads best on it, at 6.39:1.
| Hue family | Yellows |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.102) |
| Temperature | warm |
| Nearest name | Dark Mustard (#A88905) |
| Black text | 6.39:1 |
| White text | 3.28:1 |
Values
| HEX | #A18D3E |
| RGB | rgb(161, 141, 62) |
| HSL | hsl(48, 44%, 44%) |
| OKLCH | oklch(64.5% 0.102 95.2) |
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 #A18D3E | 3.28:1 | AA large text | Lc -65.5 | Content text, not long reading |
| Black text on #A18D3E | 6.39:1 | AA | Lc 44.0 | Non-text elements, placeholder text |
| #A18D3E text on white | 3.28:1 | AA large text | Lc 60.1 | Content text, not long reading |
| #A18D3E text on black | 6.39:1 | AA | Lc -41.6 | 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
#F7F5F1
oklch(97.1% 0.006 84.6)
-
Step 100
100
#EDEADF
oklch(93.6% 0.015 94.2)
-
Step 200
200
#DED9C5
oklch(88.4% 0.027 95.4)
-
Step 300
300
#CAC19D
oklch(80.9% 0.05 95.6)
-
Step 400
400
#B0A066
oklch(70.6% 0.079 94.5)
-
Step 500
500 (this color)
#A18D3E
oklch(64.5% 0.102 95.2)
-
Step 600
600
#88720D
oklch(55.7% 0.111 95)
-
Step 700
700
#735F00
oklch(49.1% 0.101 94.6)
-
Step 800
800
#5E4E05
oklch(42.8% 0.085 94.9)
-
Step 900
900
#4D4111
oklch(37.8% 0.067 94.7)
-
Step 950
950
#2D260C
oklch(27% 0.042 94.4)
#A18D3E 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) | #9A8A36 | 0.016 |
| Deuteranopia (no green cones) | #A09142 | 0.010 |
| Tritanopia (no blue cones) | #AD837C | 0.094 |
| Achromatopsia (no color) | #8E8E8E | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A18D3E
#A18D3E
oklch(64.5% 0.102 95.2)
- #7C88CC
#7C88CC
oklch(64.5% 0.103 275.5)
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 #A18D3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mustard #A88905 ΔE 0.029
- Yellowy Brown #AE8B0C ΔE 0.031
- Dark Tan #AF884A ΔE 0.032
- Dark Sand #A88F59 ΔE 0.032
- Coffee #A6814C ΔE 0.041
- Dark Goldenrod #B8860B ΔE 0.042
- Mustard Brown #AC7E04 ΔE 0.043
- Dark Beige #AC9362 ΔE 0.045
Use #A18D3E 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.