#63B059
Closest named color: Boring Green (#63B365). oklch(68.7% 0.144 141.5), rgb(99, 176, 89).
Aa
Black text reads best on this color (7.88:1).
About this color
#63B059 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.144 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Boring Green (#63B365), ΔE 0.014 away. Black text reads best on it, at 7.88:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Boring Green (#63B365) |
| Black text | 7.88:1 |
| White text | 2.66:1 |
Values
| HEX | #63B059 |
| RGB | rgb(99, 176, 89) |
| HSL | hsl(113, 36%, 52%) |
| OKLCH | oklch(68.7% 0.144 141.5) |
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 #63B059 | 2.66:1 | Fails | Lc -56.8 | Large or bold text, headings |
| Black text on #63B059 | 7.88:1 | AAA | Lc 52.4 | Large or bold text, headings |
| #63B059 text on white | 2.66:1 | Fails | Lc 51.6 | Large or bold text, headings |
| #63B059 text on black | 7.88:1 | AAA | Lc -50.3 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E1EFDE
oklch(93.7% 0.027 140.2)
-
Step 200
200
#C7E2C3
oklch(88.5% 0.051 141.6)
-
Step 300
300
#A0D099
oklch(80.9% 0.091 141.4)
-
Step 400
400 (this color)
#63B059
oklch(68.7% 0.144 141.5)
-
Step 500
500
#39A32B
oklch(63.1% 0.184 141.5)
-
Step 600
600
#188C00
oklch(55.7% 0.185 141.5)
-
Step 700
700
#127600
oklch(49.2% 0.164 141.5)
-
Step 800
800
#0D6000
oklch(42.6% 0.142 141.5)
-
Step 900
900
#0F5006
oklch(37.7% 0.12 141.5)
-
Step 950
950
#0C2F08
oklch(27% 0.076 141.6)
#63B059 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) | #B4A352 | 0.103 |
| Deuteranopia (no green cones) | #A99C5F | 0.102 |
| Tritanopia (no blue cones) | #5BAB9C | 0.095 |
| Achromatopsia (no color) | #9E9E9E | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B059
#63B059
oklch(68.7% 0.144 141.5)
- #C37ACF
#C37ACF
oklch(68.7% 0.144 321.8)
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 #63B059, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Boring Green #63B365 ΔE 0.014
- Dark Pastel Green #56AE57 ΔE 0.014
- Fern #63A950 ΔE 0.020
- Asparagus #77AB56 ΔE 0.023
- Algae #54AC68 ΔE 0.026
- Leaf #71AA34 ΔE 0.032
- Turtle Green #75B84F ΔE 0.034
- Medium Sea Green #3CB371 ΔE 0.034
Use #63B059 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.