#63CDD7
Closest named color: Medium Turquoise (#48D1CC). oklch(78.9% 0.099 203.6), rgb(99, 205, 215).
Aa
Black text reads best on this color (11.24:1).
About this color
#63CDD7 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 79%, its chroma 0.099 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Turquoise (#48D1CC), ΔE 0.029 away. Black text reads best on it, at 11.24:1.
| Hue family | Teals and cyans |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Medium Turquoise (#48D1CC) |
| Black text | 11.24:1 |
| White text | 1.86:1 |
Values
| HEX | #63CDD7 |
| RGB | rgb(99, 205, 215) |
| HSL | hsl(185, 59%, 62%) |
| OKLCH | oklch(78.9% 0.099 203.6) |
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 #63CDD7 | 1.86:1 | Fails | Lc -39.3 | Non-text elements, placeholder text |
| Black text on #63CDD7 | 11.24:1 | AAA | Lc 68.8 | Content text, not long reading |
| #63CDD7 text on white | 1.86:1 | Fails | Lc 35.1 | Non-text elements, placeholder text |
| #63CDD7 text on black | 11.24:1 | AAA | Lc -67.5 | 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
#ECF8F9
oklch(97% 0.013 202.9)
-
Step 100
100
#D5F0F2
oklch(93.6% 0.028 202.1)
-
Step 200
200
#AFE4EA
oklch(88.4% 0.055 204.8)
-
Step 300
300 (this color)
#63CDD7
oklch(78.9% 0.099 203.6)
-
Step 400
400
#00B6C2
oklch(70.7% 0.12 203.2)
-
Step 500
500
#009CA7
oklch(63.1% 0.108 203.6)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#63CDD7 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) | #BFC6D8 | 0.098 |
| Deuteranopia (no green cones) | #ADB8D8 | 0.091 |
| Tritanopia (no blue cones) | #00D4D0 | 0.043 |
| Achromatopsia (no color) | #BEBEBE | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63CDD7
#63CDD7
oklch(78.9% 0.099 203.6)
- #F3A19C
#F3A19C
oklch(78.9% 0.099 23.4)
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 #63CDD7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Turquoise #48D1CC ΔE 0.029
- Dark Turquoise #00CED1 ΔE 0.040
- Aqua Blue #02D8E9 ΔE 0.042
- Vivid Sky Blue #4CC9F0 ΔE 0.043
- Sky Blue #87CEEB ΔE 0.046
- Seafoam Blue #78D1B6 ΔE 0.053
- Pale Teal #82CBB2 ΔE 0.054
- Lightblue #7BC8F6 ΔE 0.057
Use #63CDD7 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.