#63CD90
Closest named color: Soft Green (#6FC276). oklch(76.9% 0.133 156.1), rgb(99, 205, 144).
Aa
Black text reads best on this color (10.66:1).
About this color
#63CD90 is a medium-light, moderately saturated green. In OKLCH its lightness is 77%, its chroma 0.133 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Green (#6FC276), ΔE 0.036 away. Black text reads best on it, at 10.66:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 10.66:1 |
| White text | 1.96:1 |
Values
| HEX | #63CD90 |
| RGB | rgb(99, 205, 144) |
| HSL | hsl(145, 51%, 60%) |
| OKLCH | oklch(76.9% 0.133 156.1) |
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 #63CD90 | 1.96:1 | Fails | Lc -42.1 | Non-text elements, placeholder text |
| Black text on #63CD90 | 10.66:1 | AAA | Lc 66.2 | Content text, not long reading |
| #63CD90 text on white | 1.96:1 | Fails | Lc 37.7 | Non-text elements, placeholder text |
| #63CD90 text on black | 10.66:1 | AAA | Lc -64.7 | 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
#ECF9F1
oklch(97% 0.017 159.1)
-
Step 100
100
#D6F2DF
oklch(93.6% 0.039 155.9)
-
Step 200
200
#B2E8C5
oklch(88.4% 0.073 156.2)
-
Step 300
300 (this color)
#63CD90
oklch(76.9% 0.133 156.1)
-
Step 400
400
#00BF72
oklch(70.8% 0.171 156.2)
-
Step 500
500
#00A461
oklch(63.2% 0.153 156.1)
-
Step 600
600
#008A51
oklch(55.7% 0.135 156.2)
-
Step 700
700
#007443
oklch(49.1% 0.119 156.1)
-
Step 800
800
#005F36
oklch(42.7% 0.103 156.1)
-
Step 900
900
#004F2C
oklch(37.6% 0.091 156.1)
-
Step 950
950
#002F18
oklch(26.8% 0.065 156.1)
#63CD90 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) | #CCBF8C | 0.121 |
| Deuteranopia (no green cones) | #BDB494 | 0.119 |
| Tritanopia (no blue cones) | #45CBBD | 0.065 |
| Achromatopsia (no color) | #B9B9B9 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63CD90
#63CD90
oklch(76.9% 0.133 156.1)
- #E992D4
#E992D4
oklch(76.9% 0.133 336.2)
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 #63CD90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.036
- Medium Aquamarine #66CDAA ΔE 0.036
- Emerald #06D6A0 ΔE 0.038
- Greenblue #23C48B ΔE 0.047
- Seaweed #18D17B ΔE 0.051
- Dark Mint #48C072 ΔE 0.054
- Seafoam Blue #78D1B6 ΔE 0.057
- Dark Sea Green #8FBC8F ΔE 0.060
Use #63CD90 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.