#63B877
Closest named color: Boring Green (#63B365). oklch(71.2% 0.126 149.8), rgb(99, 184, 119).
Aa
Black text reads best on this color (8.65:1).
About this color
#63B877 is a medium-light, moderately saturated green. In OKLCH its lightness is 71%, its chroma 0.126 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Boring Green (#63B365), ΔE 0.023 away. Black text reads best on it, at 8.65:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Boring Green (#63B365) |
| Black text | 8.65:1 |
| White text | 2.42:1 |
Values
| HEX | #63B877 |
| RGB | rgb(99, 184, 119) |
| HSL | hsl(134, 37%, 55%) |
| OKLCH | oklch(71.2% 0.126 149.8) |
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 #63B877 | 2.42:1 | Fails | Lc -52.6 | Large or bold text, headings |
| Black text on #63B877 | 8.65:1 | AAA | Lc 56.4 | Large or bold text, headings |
| #63B877 text on white | 2.42:1 | Fails | Lc 47.6 | Large or bold text, headings |
| #63B877 text on black | 8.65:1 | AAA | Lc -54.4 | 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
#F1F8F2
oklch(97.2% 0.011 149.9)
-
Step 100
100
#E0EEE2
oklch(93.5% 0.022 149.7)
-
Step 200
200
#C6E2CA
oklch(88.6% 0.044 149.4)
-
Step 300
300
#9DCFA6
oklch(80.8% 0.078 149.8)
-
Step 400
400 (this color)
#63B877
oklch(71.2% 0.126 149.8)
-
Step 500
500
#25A351
oklch(63% 0.16 149.9)
-
Step 600
600
#008B3E
oklch(55.6% 0.154 149.9)
-
Step 700
700
#007533
oklch(49.1% 0.136 149.9)
-
Step 800
800
#006028
oklch(42.7% 0.119 149.7)
-
Step 900
900
#005021
oklch(37.7% 0.104 150)
-
Step 950
950
#072F14
oklch(27% 0.066 150.1)
#63B877 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) | #B9AB73 | 0.106 |
| Deuteranopia (no green cones) | #ADA37B | 0.104 |
| Tritanopia (no blue cones) | #53B5A7 | 0.070 |
| Achromatopsia (no color) | #A6A6A6 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B877
#63B877
oklch(71.2% 0.126 149.8)
- #CE84C8
#CE84C8
oklch(71.2% 0.127 329.7)
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 #63B877, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Boring Green #63B365 ΔE 0.023
- Faded Green #7BB274 ΔE 0.027
- Dark Mint #48C072 ΔE 0.032
- Soft Green #6FC276 ΔE 0.033
- Medium Sea Green #3CB371 ΔE 0.035
- Sage Green #88B378 ΔE 0.040
- Algae #54AC68 ΔE 0.040
- Tea #65AB7C ΔE 0.041
Use #63B877 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.