#A0903F
Closest named color: Dark Mustard (#A88905). oklch(65.1% 0.103 98.2), rgb(160, 144, 63).
Aa
Black text reads best on this color (6.55:1).
About this color
#A0903F is a medium-light, moderately saturated yellow. In OKLCH its lightness is 65%, its chroma 0.103 and its hue 98°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Mustard (#A88905), ΔE 0.031 away. Black text reads best on it, at 6.55:1.
| Hue family | Yellows |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.103) |
| Temperature | warm |
| Nearest name | Dark Mustard (#A88905) |
| Black text | 6.55:1 |
| White text | 3.20:1 |
Values
| HEX | #A0903F |
| RGB | rgb(160, 144, 63) |
| HSL | hsl(50, 43%, 44%) |
| OKLCH | oklch(65.1% 0.103 98.2) |
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 #A0903F | 3.20:1 | AA large text | Lc -64.6 | Content text, not long reading |
| Black text on #A0903F | 6.55:1 | AA | Lc 44.9 | Non-text elements, placeholder text |
| #A0903F text on white | 3.20:1 | AA large text | Lc 59.2 | Large or bold text, headings |
| #A0903F text on black | 6.55:1 | AA | Lc -42.6 | 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
#F6F6F0
oklch(97.1% 0.008 106.5)
-
Step 100
100
#ECEADF
oklch(93.6% 0.015 98.3)
-
Step 200
200
#DEDAC5
oklch(88.6% 0.028 98.1)
-
Step 300
300
#C9C29D
oklch(81% 0.05 98.5)
-
Step 400
400
#AEA266
oklch(70.9% 0.081 98.3)
-
Step 500
500 (this color)
#A0903F
oklch(65.1% 0.103 98.2)
-
Step 600
600
#85730A
oklch(55.6% 0.112 97.9)
-
Step 700
700
#706100
oklch(49.2% 0.102 98.7)
-
Step 800
800
#5C4F04
oklch(42.8% 0.086 97.9)
-
Step 900
900
#4B4211
oklch(37.8% 0.067 98.6)
-
Step 950
950
#2C270C
oklch(27.1% 0.043 98.9)
#A0903F 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) | #9D8D36 | 0.012 |
| Deuteranopia (no green cones) | #A19243 | 0.006 |
| Tritanopia (no blue cones) | #AC867E | 0.095 |
| Achromatopsia (no color) | #909090 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A0903F
#A0903F
oklch(65.1% 0.103 98.2)
- #8189CE
#8189CE
oklch(65.2% 0.103 278.1)
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 #A0903F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mustard #A88905 ΔE 0.031
- Yellowy Brown #AE8B0C ΔE 0.032
- Dark Sand #A88F59 ΔE 0.033
- Dark Tan #AF884A ΔE 0.037
- Dark Gold #B59410 ΔE 0.043
- Dark Beige #AC9362 ΔE 0.044
- Dark Goldenrod #B8860B ΔE 0.045
- Brown Yellow #B29705 ΔE 0.047
Use #A0903F 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.