#677A04
Named color: Olive Green. oklch(54.5% 0.128 120), rgb(103, 122, 4).
Aa
White text reads best on this color (4.81:1).
About this color
#677A04 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 54%, its chroma 0.128 and its hue 120°. Its hue sits between the warm and cool halves of the wheel. It is the named color Olive Green. White text reads best on it, at 4.81:1.
| Hue family | Yellows |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Olive Green |
| Black text | 4.36:1 |
| White text | 4.81:1 |
Values
| HEX | #677A04 |
| RGB | rgb(103, 122, 4) |
| HSL | hsl(70, 94%, 25%) |
| OKLCH | oklch(54.5% 0.128 120) |
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 #677A04 | 4.81:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #677A04 | 4.36:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #677A04 text on white | 4.81:1 | AA | Lc 73.2 | Content text, not long reading |
| #677A04 text on black | 4.36:1 | AA large text | Lc -28.5 | Dividers and decoration only |
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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E8ECDF
oklch(93.6% 0.018 120.7)
-
Step 200
200
#D6DDC5
oklch(88.6% 0.033 120.3)
-
Step 300
300
#BBC79D
oklch(80.9% 0.058 120.7)
-
Step 400
400
#99A966
oklch(70.6% 0.092 119.8)
-
Step 500
500
#80943A
oklch(63.2% 0.118 120.5)
-
Step 600
600 (this color)
#677A04
oklch(54.5% 0.128 120)
-
Step 700
700
#596A00
oklch(49.3% 0.117 120.1)
-
Step 800
800
#485605
oklch(42.6% 0.099 120.1)
-
Step 900
900
#3C4711
oklch(37.6% 0.077 120.2)
-
Step 950
950
#232A0C
oklch(27% 0.049 120.8)
#677A04 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) | #837200 | 0.047 |
| Deuteranopia (no green cones) | #807216 | 0.046 |
| Tritanopia (no blue cones) | #6E7367 | 0.109 |
| Achromatopsia (no color) | #727272 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #677A04
#677A04
oklch(54.5% 0.128 120)
- #7C5CAF
#7C5CAF
oklch(54.4% 0.129 299.9)
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 #677A04, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Murky Green #6C7A0E ΔE 0.009
- Swamp #698339 ΔE 0.038
- Muddy Green #657432 ΔE 0.038
- Swamp Green #748500 ΔE 0.039
- Military Green #667C3E ΔE 0.039
- Browny Green #6F6C0A ΔE 0.042
- Olive #808000 ΔE 0.043
- Brown Green #706C11 ΔE 0.044
Use #677A04 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.