#63B6CA
Closest named color: Turquoise Blue (#06B1C4). oklch(73.1% 0.086 215.3), rgb(99, 182, 202).
Aa
Black text reads best on this color (9.07:1).
About this color
#63B6CA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.086 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.050 away. Black text reads best on it, at 9.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 9.07:1 |
| White text | 2.31:1 |
Values
| HEX | #63B6CA |
| RGB | rgb(99, 182, 202) |
| HSL | hsl(192, 49%, 59%) |
| OKLCH | oklch(73.1% 0.086 215.3) |
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 #63B6CA | 2.31:1 | Fails | Lc -50.4 | Large or bold text, headings |
| Black text on #63B6CA | 9.07:1 | AAA | Lc 58.5 | Large or bold text, headings |
| #63B6CA text on white | 2.31:1 | Fails | Lc 45.5 | Large or bold text, headings |
| #63B6CA text on black | 9.07:1 | AAA | Lc -56.6 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C4DFE6
oklch(88.6% 0.03 215.1)
-
Step 300
300
#9ACAD6
oklch(80.9% 0.053 214.8)
-
Step 400
400 (this color)
#63B6CA
oklch(73.1% 0.086 215.3)
-
Step 500
500
#0E99B3
oklch(63% 0.11 215.8)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D80
oklch(49.2% 0.087 215.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#032C34
oklch(27% 0.045 214.2)
#63B6CA 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) | #A8B1CB | 0.077 |
| Deuteranopia (no green cones) | #98A5CA | 0.070 |
| Tritanopia (no blue cones) | #21BEBC | 0.051 |
| Achromatopsia (no color) | #AAAAAA | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B6CA
#63B6CA
oklch(73.1% 0.086 215.3)
- #D89583
#D89583
oklch(73.1% 0.086 35.7)
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 #63B6CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.050
- Greyblue #77A1B5 ΔE 0.058
- Bluegrey #85A3B2 ΔE 0.059
- Vivid Sky Blue #4CC9F0 ΔE 0.064
- Cool Steel #97A7B3 ΔE 0.065
- Topaz #13BBAF ΔE 0.065
- Light Sea Green #20B2AA ΔE 0.067
- Bluey Grey #89A0B0 ΔE 0.067
Use #63B6CA 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.