#A1991C
Closest named color: Brown Yellow (#B29705). oklch(66.9% 0.135 105.5), rgb(161, 153, 28).
Aa
Black text reads best on this color (7.08:1).
About this color
#A1991C is a medium-light, moderately saturated yellow. In OKLCH its lightness is 67%, its chroma 0.135 and its hue 106°. Its hue sits on the warm side of the wheel. The nearest named color is Brown Yellow (#B29705), ΔE 0.026 away. Black text reads best on it, at 7.08:1.
| Hue family | Yellows |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Brown Yellow (#B29705) |
| Black text | 7.08:1 |
| White text | 2.96:1 |
Values
| HEX | #A1991C |
| RGB | rgb(161, 153, 28) |
| HSL | hsl(56, 70%, 37%) |
| OKLCH | oklch(66.9% 0.135 105.5) |
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 #A1991C | 2.96:1 | Fails | Lc -61.4 | Content text, not long reading |
| Black text on #A1991C | 7.08:1 | AAA | Lc 48.0 | Large or bold text, headings |
| #A1991C text on white | 2.96:1 | Fails | Lc 56.0 | Large or bold text, headings |
| #A1991C text on black | 7.08:1 | AAA | Lc -45.8 | 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
#F6F6EE
oklch(97.1% 0.011 106.6)
-
Step 100
100
#ECEBD9
oklch(93.6% 0.024 104.3)
-
Step 200
200
#DDDCB8
oklch(88.6% 0.048 106)
-
Step 300
300
#C8C484
oklch(80.9% 0.084 105.1)
-
Step 400
400 (this color)
#A1991C
oklch(66.9% 0.135 105.5)
-
Step 500
500
#958D00
oklch(63% 0.134 105.6)
-
Step 600
600
#7D7700
oklch(55.7% 0.119 106.2)
-
Step 700
700
#696300
oklch(49% 0.104 105.5)
-
Step 800
800
#565100
oklch(42.6% 0.091 105.5)
-
Step 900
900
#484400
oklch(37.8% 0.081 105.9)
-
Step 950
950
#2B2800
oklch(27.1% 0.058 105.3)
#A1991C 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) | #A79300 | 0.017 |
| Deuteranopia (no green cones) | #AA9827 | 0.016 |
| Tritanopia (no blue cones) | #AE8E83 | 0.124 |
| Achromatopsia (no color) | #969696 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1991C
#A1991C
oklch(66.9% 0.135 105.5)
- #8E87E4
#8E87E4
oklch(66.9% 0.136 285.6)
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 #A1991C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown Yellow #B29705 ΔE 0.026
- Pea Soup #929901 ΔE 0.026
- Dark Gold #B59410 ΔE 0.032
- Yellow Brown #B79400 ΔE 0.034
- Yellowy Brown #AE8B0C ΔE 0.040
- Pea Soup Green #94A617 ΔE 0.040
- Dark Mustard #A88905 ΔE 0.042
- Ocher #BF9B0C ΔE 0.047
Use #A1991C 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.