#A18E2F
Closest named color: Dark Mustard (#A88905). oklch(64.6% 0.115 97.7), rgb(161, 142, 47).
Aa
Black text reads best on this color (6.42:1).
About this color
#A18E2F is a medium-light, moderately saturated yellow. In OKLCH its lightness is 65%, its chroma 0.115 and its hue 98°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Mustard (#A88905), ΔE 0.020 away. Black text reads best on it, at 6.42:1.
| Hue family | Yellows |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.115) |
| Temperature | warm |
| Nearest name | Dark Mustard (#A88905) |
| Black text | 6.42:1 |
| White text | 3.26:1 |
Values
| HEX | #A18E2F |
| RGB | rgb(161, 142, 47) |
| HSL | hsl(50, 55%, 41%) |
| OKLCH | oklch(64.6% 0.115 97.7) |
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 #A18E2F | 3.26:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #A18E2F | 6.42:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #A18E2F text on white | 3.26:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #A18E2F text on black | 6.42:1 | AA | Lc -41.8 | 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
#F7F6F0
oklch(97.2% 0.008 98.9)
-
Step 100
100
#ECEADE
oklch(93.5% 0.016 99)
-
Step 200
200
#DEDAC3
oklch(88.5% 0.031 98.9)
-
Step 300
300
#CAC198
oklch(80.8% 0.056 97.1)
-
Step 400
400
#B0A15E
oklch(70.7% 0.089 97.1)
-
Step 500
500 (this color)
#A18E2F
oklch(64.6% 0.115 97.7)
-
Step 600
600
#867300
oklch(55.7% 0.115 97.6)
-
Step 700
700
#706000
oklch(49% 0.101 97.8)
-
Step 800
800
#5C4F00
oklch(42.8% 0.088 98.3)
-
Step 900
900
#4C4105
oklch(37.6% 0.074 97.7)
-
Step 950
950
#2D2607
oklch(26.9% 0.047 96.3)
#A18E2F 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) | #9C8B21 | 0.015 |
| Deuteranopia (no green cones) | #A19134 | 0.008 |
| Tritanopia (no blue cones) | #AE837B | 0.106 |
| Achromatopsia (no color) | #8E8E8E | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A18E2F
#A18E2F
oklch(64.6% 0.115 97.7)
- #7E86D3
#7E86D3
oklch(64.6% 0.115 278.1)
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 #A18E2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mustard #A88905 ΔE 0.020
- Yellowy Brown #AE8B0C ΔE 0.023
- Dark Goldenrod #B8860B ΔE 0.039
- Dark Gold #B59410 ΔE 0.039
- Mustard Brown #AC7E04 ΔE 0.042
- Dark Tan #AF884A ΔE 0.042
- Brown Yellow #B29705 ΔE 0.042
- Yellow Brown #B79400 ΔE 0.043
Use #A18E2F 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.