#64771B
Closest named color: Olive Green (#677A04). oklch(53.6% 0.116 120.8), rgb(100, 119, 27).
Aa
White text reads best on this color (5.00:1).
About this color
#64771B is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 54%, its chroma 0.116 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.015 away. White text reads best on it, at 5.00:1.
| Hue family | Yellows |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.19:1 |
| White text | 5.00:1 |
Values
| HEX | #64771B |
| RGB | rgb(100, 119, 27) |
| HSL | hsl(72, 63%, 29%) |
| OKLCH | oklch(53.6% 0.116 120.8) |
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 #64771B | 5.00:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #64771B | 4.19:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #64771B text on white | 5.00:1 | AA | Lc 74.5 | Content text, not long reading |
| #64771B text on black | 4.19:1 | AA large text | Lc -27.2 | 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
#E8ECE1
oklch(93.7% 0.015 123)
-
Step 200
200
#D6DCC7
oklch(88.4% 0.029 120)
-
Step 300
300
#BBC6A1
oklch(80.8% 0.052 121)
-
Step 400
400
#99A96D
oklch(70.7% 0.084 120.7)
-
Step 500
500
#809345
oklch(63.1% 0.106 120.9)
-
Step 600
600 (this color)
#64771B
oklch(53.6% 0.116 120.8)
-
Step 700
700
#586914
oklch(49% 0.108 120.7)
-
Step 800
800
#485615
oklch(42.7% 0.089 120.9)
-
Step 900
900
#3C4719
oklch(37.7% 0.07 121.1)
-
Step 950
950
#232A10
oklch(27.1% 0.044 121.8)
#64771B 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) | #7F7007 | 0.042 |
| Deuteranopia (no green cones) | #7C6F23 | 0.044 |
| Tritanopia (no blue cones) | #6A7065 | 0.098 |
| Achromatopsia (no color) | #6F6F6F | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64771B
#64771B
oklch(53.6% 0.116 120.8)
- #795CA6
#795CA6
oklch(53.6% 0.116 300.6)
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 #64771B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.015
- Murky Green #6C7A0E ΔE 0.016
- Muddy Green #657432 ΔE 0.024
- Military Green #667C3E ΔE 0.032
- Browny Green #6F6C0A ΔE 0.033
- Brown Green #706C11 ΔE 0.034
- Swamp #698339 ΔE 0.039
- Dark Moss Green #606C38 ΔE 0.049
Use #64771B 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.