#639741
Closest named color: Flat Green (#699D4C). oklch(62% 0.13 134.6), rgb(99, 151, 65).
Aa
Black text reads best on this color (6.03:1).
About this color
#639741 is a medium-light, moderately saturated green. In OKLCH its lightness is 62%, its chroma 0.130 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.021 away. Black text reads best on it, at 6.03:1.
| Hue family | Greens |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.130) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.03:1 |
| White text | 3.48:1 |
Values
| HEX | #639741 |
| RGB | rgb(99, 151, 65) |
| HSL | hsl(96, 40%, 42%) |
| OKLCH | oklch(62% 0.13 134.6) |
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 #639741 | 3.48:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #639741 | 6.03:1 | AA | Lc 41.9 | Non-text elements, placeholder text |
| #639741 text on white | 3.48:1 | AA large text | Lc 62.2 | Content text, not long reading |
| #639741 text on black | 6.03:1 | AA | Lc -39.5 | 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
#CFDFC7
oklch(88.5% 0.037 135)
-
Step 300
300
#AFCAA1
oklch(80.8% 0.063 135)
-
Step 400
400
#85AF6D
oklch(70.7% 0.102 134.8)
-
Step 500
500 (this color)
#639741
oklch(62% 0.13 134.6)
-
Step 600
600
#4D8422
oklch(55.5% 0.141 134.5)
-
Step 700
700
#3E7013
oklch(49.1% 0.132 134.4)
-
Step 800
800
#335B14
oklch(42.6% 0.109 134.6)
-
Step 900
900
#2D4B19
oklch(37.7% 0.084 134.8)
-
Step 950
950
#1B2C10
oklch(27% 0.053 134.5)
#639741 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) | #9C8C39 | 0.079 |
| Deuteranopia (no green cones) | #958847 | 0.079 |
| Tritanopia (no blue cones) | #639284 | 0.094 |
| Achromatopsia (no color) | #898989 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #639741
#639741
oklch(62% 0.13 134.6)
- #A36CBC
#A36CBC
oklch(62% 0.131 314.6)
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 #639741, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.021
- Muted Green #5FA052 ΔE 0.026
- Olive Drab #6B8E23 ΔE 0.029
- Drab Green #749551 ΔE 0.031
- Moss Green #658B38 ΔE 0.033
- Mossy Green #638B27 ΔE 0.036
- Light Forest Green #4F9153 ΔE 0.036
- Fern Green #548D44 ΔE 0.036
Use #639741 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.