#817F10
Closest named color: Olive (#808000). oklch(58% 0.121 108.5), rgb(129, 127, 16).
Aa
Black text reads best on this color (4.97:1).
About this color
#817F10 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 58%, its chroma 0.121 and its hue 108°. Its hue sits on the warm side of the wheel. The nearest named color is Olive (#808000), ΔE 0.006 away. Black text reads best on it, at 4.97:1.
| Hue family | Yellows |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.121) |
| Temperature | warm |
| Nearest name | Olive (#808000) |
| Black text | 4.97:1 |
| White text | 4.21:1 |
Values
| HEX | #817F10 |
| RGB | rgb(129, 127, 16) |
| HSL | hsl(59, 78%, 28%) |
| OKLCH | oklch(58% 0.121 108.5) |
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 #817F10 | 4.21:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #817F10 | 4.97:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #817F10 text on white | 4.21:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #817F10 text on black | 4.97:1 | AA | Lc -32.7 | 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 600.
-
Step 50
50
#F6F6F0
oklch(97.1% 0.008 106.5)
-
Step 100
100
#EAEBDF
oklch(93.6% 0.016 110.6)
-
Step 200
200
#DADBC5
oklch(88.5% 0.03 109.1)
-
Step 300
300
#C3C49C
oklch(80.9% 0.054 108.7)
-
Step 400
400
#A5A564
oklch(70.7% 0.087 108.4)
-
Step 500
500
#908E35
oklch(63.1% 0.111 108)
-
Step 600
600 (this color)
#817F10
oklch(58% 0.121 108.5)
-
Step 700
700
#666500
oklch(49.1% 0.107 109.1)
-
Step 800
800
#545200
oklch(42.7% 0.092 108.1)
-
Step 900
900
#45440E
oklch(37.6% 0.072 108.4)
-
Step 950
950
#28280B
oklch(26.9% 0.046 109.1)
#817F10 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) | #8A7900 | 0.020 |
| Deuteranopia (no green cones) | #8C7D1C | 0.020 |
| Tritanopia (no blue cones) | #8B766C | 0.110 |
| Achromatopsia (no color) | #7B7B7B | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #817F10
#817F10
oklch(58% 0.121 108.5)
- #786DBD
#786DBD
oklch(58% 0.121 288.4)
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 #817F10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive #808000 ΔE 0.006
- Swamp Green #748500 ΔE 0.027
- Khaki Green #728639 ΔE 0.031
- Hazel #8E7618 ΔE 0.033
- Murky Green #6C7A0E ΔE 0.036
- Swamp #698339 ΔE 0.038
- Drab #828344 ΔE 0.039
- Olive Green #677A04 ΔE 0.044
Use #817F10 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.