#63CFA7
Closest named color: Medium Aquamarine (#66CDAA). oklch(78% 0.116 166.6), rgb(99, 207, 167).
Aa
Black text reads best on this color (11.01:1).
About this color
#63CFA7 is a medium-light, moderately saturated green. In OKLCH its lightness is 78%, its chroma 0.116 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.008 away. Black text reads best on it, at 11.01:1.
| Hue family | Greens |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 11.01:1 |
| White text | 1.90:1 |
Values
| HEX | #63CFA7 |
| RGB | rgb(99, 207, 167) |
| HSL | hsl(158, 53%, 60%) |
| OKLCH | oklch(78% 0.116 166.6) |
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 #63CFA7 | 1.90:1 | Fails | Lc -40.4 | Non-text elements, placeholder text |
| Black text on #63CFA7 | 11.01:1 | AAA | Lc 67.8 | Content text, not long reading |
| #63CFA7 text on white | 1.90:1 | Fails | Lc 36.1 | Non-text elements, placeholder text |
| #63CFA7 text on black | 11.01:1 | AAA | Lc -66.4 | Content text, not long reading |
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 300.
-
Step 50
50
#ECF9F3
oklch(97.1% 0.016 166.7)
-
Step 100
100
#D6F2E5
oklch(93.7% 0.034 166)
-
Step 200
200
#B1E7D0
oklch(88.4% 0.064 166.9)
-
Step 300
300 (this color)
#63CFA7
oklch(78% 0.116 166.6)
-
Step 400
400
#00BD8D
oklch(70.8% 0.146 166.7)
-
Step 500
500
#00A278
oklch(63.2% 0.13 166.5)
-
Step 600
600
#008864
oklch(55.6% 0.115 166.4)
-
Step 700
700
#007254
oklch(49% 0.101 166.9)
-
Step 800
800
#005E44
oklch(42.7% 0.088 166.3)
-
Step 900
900
#004E38
oklch(37.6% 0.078 166.4)
-
Step 950
950
#002F20
oklch(27.1% 0.056 165.8)
#63CFA7 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) | #CBC3A5 | 0.117 |
| Deuteranopia (no green cones) | #BBB7AA | 0.113 |
| Tritanopia (no blue cones) | #38D0C4 | 0.043 |
| Achromatopsia (no color) | #BCBCBC | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63CFA7
#63CFA7
oklch(78% 0.116 166.6)
- #ED98C6
#ED98C6
oklch(77.9% 0.116 346.5)
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 #63CFA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.008
- Seafoam Blue #78D1B6 ΔE 0.030
- Pale Teal #82CBB2 ΔE 0.036
- Emerald #06D6A0 ΔE 0.043
- Medium Turquoise #48D1CC ΔE 0.051
- Tiffany Blue #94D2BD ΔE 0.059
- Dark Sea Green #8FBC8F ΔE 0.059
- Turquoise #40E0D0 ΔE 0.060
Use #63CFA7 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.