#639930
Closest named color: Flat Green (#699D4C). oklch(62.3% 0.147 132.7), rgb(99, 153, 48).
Aa
Black text reads best on this color (6.12:1).
About this color
#639930 is a medium-light, vivid green. In OKLCH its lightness is 62%, its chroma 0.147 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.029 away. Black text reads best on it, at 6.12:1.
| Hue family | Greens |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.12:1 |
| White text | 3.42:1 |
Values
| HEX | #639930 |
| RGB | rgb(99, 153, 48) |
| HSL | hsl(91, 52%, 39%) |
| OKLCH | oklch(62.3% 0.147 132.7) |
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 #639930 | 3.42:1 | AA large text | Lc -67.1 | Content text, not long reading |
| Black text on #639930 | 6.12:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #639930 text on white | 3.42:1 | AA large text | Lc 61.6 | Content text, not long reading |
| #639930 text on black | 6.12:1 | AA | Lc -40.1 | 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
#F3F7F0
oklch(97.1% 0.01 131.4)
-
Step 100
100
#E5EDDF
oklch(93.6% 0.02 131.5)
-
Step 200
200
#CFDFC4
oklch(88.4% 0.04 132.4)
-
Step 300
300
#AFCB9B
oklch(80.9% 0.072 132.5)
-
Step 400
400
#84B063
oklch(70.7% 0.116 132.9)
-
Step 500
500 (this color)
#639930
oklch(62.3% 0.147 132.7)
-
Step 600
600
#4D8500
oklch(55.6% 0.156 132.7)
-
Step 700
700
#407000
oklch(49.1% 0.138 132.7)
-
Step 800
800
#335C00
oklch(42.8% 0.12 132.9)
-
Step 900
900
#2D4C0C
oklch(37.8% 0.096 132.5)
-
Step 950
950
#1A2C0A
oklch(26.8% 0.06 132.8)
#639930 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) | #9F8D21 | 0.083 |
| Deuteranopia (no green cones) | #988939 | 0.085 |
| Tritanopia (no blue cones) | #649384 | 0.110 |
| Achromatopsia (no color) | #8B8B8B | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #639930
#639930
oklch(62.3% 0.147 132.7)
- #A56AC6
#A56AC6
oklch(62.4% 0.146 312.4)
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 #639930, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.029
- Olive Drab #6B8E23 ΔE 0.030
- Dark Yellow Green #728F02 ΔE 0.031
- Muted Green #5FA052 ΔE 0.033
- Mid Green #50A747 ΔE 0.039
- Mossy Green #638B27 ΔE 0.040
- Off Green #6BA353 ΔE 0.041
- Sap Green #5C8B15 ΔE 0.043
Use #639930 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.