#A78C19
Closest named color: Dark Mustard (#A88905). oklch(64.6% 0.126 94.3), rgb(167, 140, 25).
Aa
Black text reads best on this color (6.40:1).
About this color
#A78C19 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 65%, its chroma 0.126 and its hue 94°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Mustard (#A88905), ΔE 0.008 away. Black text reads best on it, at 6.40:1.
| Hue family | Yellows |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Dark Mustard (#A88905) |
| Black text | 6.40:1 |
| White text | 3.27:1 |
Values
| HEX | #A78C19 |
| RGB | rgb(167, 140, 25) |
| HSL | hsl(49, 74%, 38%) |
| OKLCH | oklch(64.6% 0.126 94.3) |
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 #A78C19 | 3.27:1 | AA large text | Lc -65.4 | Content text, not long reading |
| Black text on #A78C19 | 6.40:1 | AA | Lc 44.1 | Non-text elements, placeholder text |
| #A78C19 text on white | 3.27:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #A78C19 text on black | 6.40:1 | 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
#F7F5EF
oklch(97% 0.008 91.5)
-
Step 100
100
#EDEADD
oklch(93.6% 0.018 96.1)
-
Step 200
200
#E0D9C0
oklch(88.4% 0.034 94.1)
-
Step 300
300
#CDC194
oklch(81% 0.061 94.9)
-
Step 400
400
#B4A055
oklch(70.7% 0.098 94.8)
-
Step 500
500 (this color)
#A78C19
oklch(64.6% 0.126 94.3)
-
Step 600
600
#897100
oklch(55.5% 0.114 94.1)
-
Step 700
700
#735F00
oklch(49.1% 0.101 94.6)
-
Step 800
800
#5F4E00
oklch(42.9% 0.088 94.5)
-
Step 900
900
#4F4000
oklch(37.6% 0.077 93.9)
-
Step 950
950
#2F2603
oklch(27.1% 0.052 94.3)
#A78C19 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 | 0.022 |
| Deuteranopia (no green cones) | #A39122 | 0.013 |
| Tritanopia (no blue cones) | #B58077 | 0.115 |
| Achromatopsia (no color) | #8E8E8E | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A78C19
#A78C19
oklch(64.6% 0.126 94.3)
- #7787DA
#7787DA
oklch(64.7% 0.125 274.1)
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 #A78C19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mustard #A88905 ΔE 0.008
- Yellowy Brown #AE8B0C ΔE 0.011
- Dark Goldenrod #B8860B ΔE 0.030
- Dark Gold #B59410 ΔE 0.033
- Mustard Brown #AC7E04 ΔE 0.036
- Yellow Brown #B79400 ΔE 0.036
- Brown Yellow #B29705 ΔE 0.037
- Ochre #BF9005 ΔE 0.042
Use #A78C19 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.