#63BC9E
Closest named color: Greeny Blue (#42B395). oklch(73.1% 0.097 169.4), rgb(99, 188, 158).
Aa
Black text reads best on this color (9.21:1).
About this color
#63BC9E is a medium-light, moderately saturated green. In OKLCH its lightness is 73%, its chroma 0.097 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.040 away. Black text reads best on it, at 9.21:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 9.21:1 |
| White text | 2.27:1 |
Values
| HEX | #63BC9E |
| RGB | rgb(99, 188, 158) |
| HSL | hsl(160, 40%, 56%) |
| OKLCH | oklch(73.1% 0.097 169.4) |
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 #63BC9E | 2.27:1 | Fails | Lc -49.6 | Large or bold text, headings |
| Black text on #63BC9E | 9.21:1 | AAA | Lc 59.2 | Large or bold text, headings |
| #63BC9E text on white | 2.27:1 | Fails | Lc 44.8 | Non-text elements, placeholder text |
| #63BC9E text on black | 9.21:1 | AAA | Lc -57.4 | 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
#F0F7F4
oklch(97% 0.008 168.8)
-
Step 100
100
#DFEEE8
oklch(93.6% 0.018 170.1)
-
Step 200
200
#C4E1D5
oklch(88.5% 0.035 168.7)
-
Step 300
300
#9ACEBA
oklch(80.9% 0.061 169.1)
-
Step 400
400 (this color)
#63BC9E
oklch(73.1% 0.097 169.4)
-
Step 500
500
#08A17D
oklch(63.1% 0.124 169.5)
-
Step 600
600
#008869
oklch(55.7% 0.111 169.5)
-
Step 700
700
#007257
oklch(49.1% 0.098 169.1)
-
Step 800
800
#005E47
oklch(42.8% 0.086 168.9)
-
Step 900
900
#004E3B
oklch(37.7% 0.075 169.6)
-
Step 950
950
#032E22
oklch(26.9% 0.051 169.4)
#63BC9E 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) | #B8B29D | 0.100 |
| Deuteranopia (no green cones) | #AAA8A0 | 0.095 |
| Tritanopia (no blue cones) | #43BDB3 | 0.034 |
| Achromatopsia (no color) | #ACACAC | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63BC9E
#63BC9E
oklch(73.1% 0.097 169.4)
- #D78FB1
#D78FB1
oklch(73.2% 0.097 349.9)
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 #63BC9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.040
- Topaz #13BBAF ΔE 0.045
- Dark Sea Green #8FBC8F ΔE 0.046
- Muted Teal #90B494 ΔE 0.047
- Medium Aquamarine #66CDAA ΔE 0.047
- Faded Green #7BB274 ΔE 0.054
- Sage Green #88B378 ΔE 0.054
- Green Blue #01C08D ΔE 0.054
Use #63BC9E 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.