#A28E18
Closest named color: Dark Mustard (#A88905). oklch(64.6% 0.127 98.6), rgb(162, 142, 24).
Aa
Black text reads best on this color (6.41:1).
About this color
#A28E18 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 65%, its chroma 0.127 and its hue 99°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Mustard (#A88905), ΔE 0.015 away. Black text reads best on it, at 6.41:1.
| Hue family | Yellows |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.127) |
| Temperature | warm |
| Nearest name | Dark Mustard (#A88905) |
| Black text | 6.41:1 |
| White text | 3.27:1 |
Values
| HEX | #A28E18 |
| RGB | rgb(162, 142, 24) |
| HSL | hsl(51, 74%, 36%) |
| OKLCH | oklch(64.6% 0.127 98.6) |
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 #A28E18 | 3.27:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #A28E18 | 6.41:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #A28E18 text on white | 3.27:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #A28E18 text on black | 6.41:1 | 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
#F7F6EF
oklch(97.2% 0.009 100)
-
Step 100
100
#EDEADD
oklch(93.6% 0.018 96.1)
-
Step 200
200
#DFDAC0
oklch(88.5% 0.035 98.1)
-
Step 300
300
#CBC294
oklch(81% 0.062 98.3)
-
Step 400
400
#B0A154
oklch(70.5% 0.1 98.5)
-
Step 500
500 (this color)
#A28E18
oklch(64.6% 0.127 98.6)
-
Step 600
600
#857300
oklch(55.6% 0.115 98.3)
-
Step 700
700
#706100
oklch(49.2% 0.102 98.7)
-
Step 800
800
#5C4F00
oklch(42.8% 0.088 98.3)
-
Step 900
900
#4C4200
oklch(37.8% 0.078 99.5)
-
Step 950
950
#2D2603
oklch(26.9% 0.052 97.7)
#A28E18 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) | #9D8A00 | 0.015 |
| Deuteranopia (no green cones) | #A29122 | 0.008 |
| Tritanopia (no blue cones) | #AF8279 | 0.118 |
| Achromatopsia (no color) | #8E8E8E | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A28E18
#A28E18
oklch(64.6% 0.127 98.6)
- #7D84DA
#7D84DA
oklch(64.5% 0.128 278.6)
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 #A28E18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mustard #A88905 ΔE 0.015
- Yellowy Brown #AE8B0C ΔE 0.020
- Dark Gold #B59410 ΔE 0.036
- Brown Yellow #B29705 ΔE 0.037
- Yellow Brown #B79400 ΔE 0.039
- Dark Goldenrod #B8860B ΔE 0.039
- Pea Soup #929901 ΔE 0.040
- Mustard Brown #AC7E04 ΔE 0.043
Use #A28E18 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.