#A58C03
Closest named color: Dark Mustard (#A88905). oklch(64.4% 0.132 96.3), rgb(165, 140, 3).
Aa
Black text reads best on this color (6.35:1).
About this color
#A58C03 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 64%, its chroma 0.132 and its hue 96°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Mustard (#A88905), ΔE 0.009 away. Black text reads best on it, at 6.35:1.
| Hue family | Yellows |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Dark Mustard (#A88905) |
| Black text | 6.35:1 |
| White text | 3.30:1 |
Values
| HEX | #A58C03 |
| RGB | rgb(165, 140, 3) |
| HSL | hsl(51, 96%, 33%) |
| OKLCH | oklch(64.4% 0.132 96.3) |
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 #A58C03 | 3.30:1 | AA large text | Lc -65.7 | Content text, not long reading |
| Black text on #A58C03 | 6.35:1 | AA | Lc 43.8 | Non-text elements, placeholder text |
| #A58C03 text on white | 3.30:1 | AA large text | Lc 60.2 | Content text, not long reading |
| #A58C03 text on black | 6.35:1 | AA | Lc -41.5 | 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
#EDEADC
oklch(93.6% 0.019 96.9)
-
Step 200
200
#E0DABF
oklch(88.6% 0.037 96.7)
-
Step 300
300
#CCC192
oklch(80.8% 0.064 96.5)
-
Step 400
400
#B3A050
oklch(70.6% 0.103 96.2)
-
Step 500
500 (this color)
#A58C03
oklch(64.4% 0.132 96.3)
-
Step 600
600
#877200
oklch(55.5% 0.114 96.2)
-
Step 700
700
#726000
oklch(49.2% 0.101 96.3)
-
Step 800
800
#5D4E00
oklch(42.6% 0.088 96.3)
-
Step 900
900
#4E4100
oklch(37.8% 0.078 96.2)
-
Step 950
950
#2E2601
oklch(27% 0.054 96.7)
#A58C03 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) | #9C8900 | 0.017 |
| Deuteranopia (no green cones) | #A29115 | 0.013 |
| Tritanopia (no blue cones) | #B38077 | 0.121 |
| Achromatopsia (no color) | #8D8D8D | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A58C03
#A58C03
oklch(64.4% 0.132 96.3)
- #7984DC
#7984DC
oklch(64.3% 0.132 276.6)
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 #A58C03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mustard #A88905 ΔE 0.009
- Yellowy Brown #AE8B0C ΔE 0.016
- Dark Goldenrod #B8860B ΔE 0.035
- Dark Gold #B59410 ΔE 0.035
- Brown Yellow #B29705 ΔE 0.037
- Yellow Brown #B79400 ΔE 0.038
- Mustard Brown #AC7E04 ΔE 0.038
- Pea Soup #929901 ΔE 0.044
Use #A58C03 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.