#A18319
Closest named color: Mustard Brown (#AC7E04). oklch(62.1% 0.12 91.4), rgb(161, 131, 25).
Aa
Black text reads best on this color (5.77:1).
About this color
#A18319 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 62%, its chroma 0.120 and its hue 91°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Brown (#AC7E04), ΔE 0.020 away. Black text reads best on it, at 5.77:1.
| Hue family | Yellows |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.120) |
| Temperature | warm |
| Nearest name | Mustard Brown (#AC7E04) |
| Black text | 5.77:1 |
| White text | 3.63:1 |
Values
| HEX | #A18319 |
| RGB | rgb(161, 131, 25) |
| HSL | hsl(47, 73%, 36%) |
| OKLCH | oklch(62.1% 0.12 91.4) |
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 #A18319 | 3.63:1 | AA large text | Lc -69.3 | Content text, not long reading |
| Black text on #A18319 | 5.77:1 | AA | Lc 40.3 | Non-text elements, placeholder text |
| #A18319 text on white | 3.63:1 | AA large text | Lc 63.8 | Content text, not long reading |
| #A18319 text on black | 5.77:1 | AA | Lc -37.9 | 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
#E1D9C1
oklch(88.5% 0.033 91.7)
-
Step 300
300
#CEC096
oklch(80.9% 0.058 91.8)
-
Step 400
400
#B69F59
oklch(70.8% 0.094 91.7)
-
Step 500
500 (this color)
#A18319
oklch(62.1% 0.12 91.4)
-
Step 600
600
#8C7000
oklch(55.6% 0.114 91.4)
-
Step 700
700
#765E00
oklch(49.2% 0.101 91.4)
-
Step 800
800
#614D00
oklch(42.9% 0.088 91.6)
-
Step 900
900
#513F00
oklch(37.6% 0.077 90.4)
-
Step 950
950
#2F2505
oklch(26.9% 0.049 91.2)
#A18319 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) | #938100 | 0.027 |
| Deuteranopia (no green cones) | #9A8A21 | 0.020 |
| Tritanopia (no blue cones) | #AF7770 | 0.110 |
| Achromatopsia (no color) | #868686 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A18319
#A18319
oklch(62.1% 0.12 91.4)
- #6D81CF
#6D81CF
oklch(62.2% 0.12 271.6)
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 #A18319, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Brown #AC7E04 ΔE 0.020
- Dark Mustard #A88905 ΔE 0.022
- Bronze #A87900 ΔE 0.026
- Yellowy Brown #AE8B0C ΔE 0.032
- Golden Brown #B27A01 ΔE 0.034
- Dark Goldenrod #B8860B ΔE 0.040
- Coffee #A6814C ΔE 0.046
- Dark Tan #AF884A ΔE 0.048
Use #A18319 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.