#ADB91C
Closest named color: Mustard Green (#A8B504). oklch(75.1% 0.163 114.4), rgb(173, 185, 28).
Aa
Black text reads best on this color (9.73:1).
About this color
#ADB91C is a medium-light, vivid yellow. In OKLCH its lightness is 75%, its chroma 0.163 and its hue 114°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mustard Green (#A8B504), ΔE 0.014 away. Black text reads best on it, at 9.73:1.
| Hue family | Yellows |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Mustard Green (#A8B504) |
| Black text | 9.73:1 |
| White text | 2.15:1 |
Values
| HEX | #ADB91C |
| RGB | rgb(173, 185, 28) |
| HSL | hsl(65, 74%, 42%) |
| OKLCH | oklch(75.1% 0.163 114.4) |
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 #ADB91C | 2.15:1 | Fails | Lc -46.9 | Large or bold text, headings |
| Black text on #ADB91C | 9.73:1 | AAA | Lc 61.7 | Content text, not long reading |
| #ADB91C text on white | 2.15:1 | Fails | Lc 42.2 | Non-text elements, placeholder text |
| #ADB91C text on black | 9.73:1 | AAA | Lc -60.0 | Large or bold text, headings |
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 400.
-
Step 50
50
#F5F7EC
oklch(97.2% 0.015 115)
-
Step 100
100
#E9EDD6
oklch(93.7% 0.031 115)
-
Step 200
200
#D8DEB4
oklch(88.5% 0.056 114.2)
-
Step 300
300
#BFC87A
oklch(80.8% 0.102 114.1)
-
Step 400
400 (this color)
#ADB91C
oklch(75.1% 0.163 114.4)
-
Step 500
500
#889200
oklch(63% 0.142 114.5)
-
Step 600
600
#727B00
oklch(55.6% 0.126 114.8)
-
Step 700
700
#606700
oklch(49.1% 0.111 114.3)
-
Step 800
800
#4E5400
oklch(42.6% 0.096 114.4)
-
Step 900
900
#414600
oklch(37.7% 0.085 114.3)
-
Step 950
950
#262900
oklch(26.9% 0.06 113.9)
#ADB91C 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) | #C7AF00 | 0.042 |
| Deuteranopia (no green cones) | #C7B22E | 0.044 |
| Tritanopia (no blue cones) | #B9AD9E | 0.145 |
| Achromatopsia (no color) | #B0B0B0 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADB91C
#ADB91C
oklch(75.1% 0.163 114.4)
- #B49BFF
#B49BFF
oklch(75.1% 0.142 294.2)
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 #ADB91C, closest first.
No curated palette has a color within ΔE 0.04 of #ADB91C.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Green #A8B504 ΔE 0.014
- Pea #A4BF20 ΔE 0.019
- Bright Olive #9CBB04 ΔE 0.025
- Olive Yellow #C2B709 ΔE 0.029
- Muddy Yellow #BFAC05 ΔE 0.040
- Light Olive Green #A4BE5C ΔE 0.041
- Avocado #90B134 ΔE 0.047
- Mustard #CEB301 ΔE 0.048
Use #ADB91C 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.