#639947
Closest named color: Flat Green (#699D4C). oklch(62.6% 0.128 136), rgb(99, 153, 71).
Aa
Black text reads best on this color (6.17:1).
About this color
#639947 is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.128 and its hue 136°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.015 away. Black text reads best on it, at 6.17:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.17:1 |
| White text | 3.39:1 |
Values
| HEX | #639947 |
| RGB | rgb(99, 153, 71) |
| HSL | hsl(100, 37%, 44%) |
| OKLCH | oklch(62.6% 0.128 136) |
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 #639947 | 3.39:1 | AA large text | Lc -66.8 | Content text, not long reading |
| Black text on #639947 | 6.17:1 | AA | Lc 42.7 | Non-text elements, placeholder text |
| #639947 text on white | 3.39:1 | AA large text | Lc 61.3 | Content text, not long reading |
| #639947 text on black | 6.17:1 | AA | Lc -40.4 | 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
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E5EDE1
oklch(93.7% 0.018 134.9)
-
Step 200
200
#CFDFC8
oklch(88.5% 0.035 136)
-
Step 300
300
#AFCAA2
oklch(80.8% 0.062 135.5)
-
Step 400
400
#84AF70
oklch(70.7% 0.1 136.1)
-
Step 500
500 (this color)
#639947
oklch(62.6% 0.128 136)
-
Step 600
600
#4B8528
oklch(55.7% 0.139 135.9)
-
Step 700
700
#3C701B
oklch(49.1% 0.128 135.9)
-
Step 800
800
#325B19
oklch(42.6% 0.106 135.8)
-
Step 900
900
#2C4B1B
oklch(37.6% 0.083 135.9)
-
Step 950
950
#1A2C11
oklch(26.9% 0.052 136.1)
#639947 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) | #9E8E3F | 0.081 |
| Deuteranopia (no green cones) | #968A4D | 0.080 |
| Tritanopia (no blue cones) | #629486 | 0.090 |
| Achromatopsia (no color) | #8B8B8B | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #639947
#639947
oklch(62.6% 0.128 136)
- #A66EBB
#A66EBB
oklch(62.6% 0.127 316.4)
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 #639947, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.015
- Muted Green #5FA052 ΔE 0.020
- Drab Green #749551 ΔE 0.028
- Off Green #6BA353 ΔE 0.032
- Moss #769958 ΔE 0.033
- Olive Drab #6B8E23 ΔE 0.036
- Light Forest Green #4F9153 ΔE 0.037
- Moss Green #658B38 ΔE 0.039
Use #639947 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.