#818804
Closest named color: Swamp Green (#748500). oklch(60.1% 0.133 113.4), rgb(129, 136, 4).
Aa
Black text reads best on this color (5.45:1).
About this color
#818804 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 60%, its chroma 0.133 and its hue 113°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Swamp Green (#748500), ΔE 0.022 away. Black text reads best on it, at 5.45:1.
| Hue family | Yellows |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Swamp Green (#748500) |
| Black text | 5.45:1 |
| White text | 3.84:1 |
Values
| HEX | #818804 |
| RGB | rgb(129, 136, 4) |
| HSL | hsl(63, 94%, 27%) |
| OKLCH | oklch(60.1% 0.133 113.4) |
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 #818804 | 3.84:1 | AA large text | Lc -71.3 | Content text, not long reading |
| Black text on #818804 | 5.45:1 | AA | Lc 38.3 | Non-text elements, placeholder text |
| #818804 text on white | 3.84:1 | AA large text | Lc 65.8 | Content text, not long reading |
| #818804 text on black | 5.45:1 | AA | Lc -35.9 | 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
#F5F6F0
oklch(97.1% 0.008 114.2)
-
Step 100
100
#E9EBDD
oklch(93.5% 0.019 113.4)
-
Step 200
200
#D9DCC1
oklch(88.5% 0.036 112.3)
-
Step 300
300
#C0C695
oklch(81% 0.066 113.6)
-
Step 400
400
#A0A858
oklch(70.7% 0.105 113.8)
-
Step 500
500 (this color)
#818804
oklch(60.1% 0.133 113.4)
-
Step 600
600
#747A00
oklch(55.6% 0.124 113.2)
-
Step 700
700
#616700
oklch(49.2% 0.11 113.7)
-
Step 800
800
#4F5400
oklch(42.7% 0.096 113.7)
-
Step 900
900
#424600
oklch(37.8% 0.084 113.4)
-
Step 950
950
#272904
oklch(27% 0.055 112.6)
#818804 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) | #938100 | 0.032 |
| Deuteranopia (no green cones) | #938318 | 0.033 |
| Tritanopia (no blue cones) | #8B7F73 | 0.118 |
| Achromatopsia (no color) | #828282 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #818804
#818804
oklch(60.1% 0.133 113.4)
- #856FC8
#856FC8
oklch(60.1% 0.133 293.4)
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 #818804, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Swamp Green #748500 ΔE 0.022
- Olive #808000 ΔE 0.023
- Dark Yellow Green #728F02 ΔE 0.028
- Olive Drab #6B8E23 ΔE 0.031
- Khaki Green #728639 ΔE 0.035
- Mossy Green #638B27 ΔE 0.039
- Moss Green #658B38 ΔE 0.040
- Swamp #698339 ΔE 0.047
Use #818804 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.