#63CDA5
Closest named color: Medium Aquamarine (#66CDAA). oklch(77.4% 0.115 166.3), rgb(99, 205, 165).
Aa
Black text reads best on this color (10.80:1).
About this color
#63CDA5 is a medium-light, moderately saturated green. In OKLCH its lightness is 77%, its chroma 0.115 and its hue 166°. 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 10.80:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.80:1 |
| White text | 1.94:1 |
Values
| HEX | #63CDA5 |
| RGB | rgb(99, 205, 165) |
| HSL | hsl(157, 51%, 60%) |
| OKLCH | oklch(77.4% 0.115 166.3) |
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 #63CDA5 | 1.94:1 | Fails | Lc -41.4 | Non-text elements, placeholder text |
| Black text on #63CDA5 | 10.80:1 | AAA | Lc 66.8 | Content text, not long reading |
| #63CDA5 text on white | 1.94:1 | Fails | Lc 37.1 | Non-text elements, placeholder text |
| #63CDA5 text on black | 10.80:1 | AAA | Lc -65.4 | 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
#D6F1E5
oklch(93.5% 0.033 167.1)
-
Step 200
200
#B1E7D0
oklch(88.4% 0.064 166.9)
-
Step 300
300 (this color)
#63CDA5
oklch(77.4% 0.115 166.3)
-
Step 400
400
#00BD8C
oklch(70.8% 0.147 166.2)
-
Step 500
500
#00A277
oklch(63.2% 0.131 166)
-
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)
#63CDA5 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) | #C9C1A3 | 0.115 |
| Deuteranopia (no green cones) | #B9B5A8 | 0.111 |
| Tritanopia (no blue cones) | #3ACEC2 | 0.043 |
| Achromatopsia (no color) | #BABABA | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63CDA5
#63CDA5
oklch(77.4% 0.115 166.3)
- #EB97C5
#EB97C5
oklch(77.4% 0.115 346.1)
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 #63CDA5, 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 0.032
- Pale Teal #82CBB2 ΔE 0.036
- Emerald #06D6A0 ΔE 0.044
- Medium Turquoise #48D1CC ΔE 0.052
- Dark Sea Green #8FBC8F ΔE 0.056
- Soft Green #6FC276 ΔE 0.058
- Greenblue #23C48B ΔE 0.058
Use #63CDA5 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.