#63AFD2
Closest named color: Greyblue (#77A1B5). oklch(71.8% 0.091 229.6), rgb(99, 175, 210).
Aa
Black text reads best on this color (8.59:1).
About this color
#63AFD2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.091 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.049 away. Black text reads best on it, at 8.59:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.59:1 |
| White text | 2.44:1 |
Values
| HEX | #63AFD2 |
| RGB | rgb(99, 175, 210) |
| HSL | hsl(199, 55%, 61%) |
| OKLCH | oklch(71.8% 0.091 229.6) |
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 #63AFD2 | 2.44:1 | Fails | Lc -52.9 | Large or bold text, headings |
| Black text on #63AFD2 | 8.59:1 | AAA | Lc 56.1 | Large or bold text, headings |
| #63AFD2 text on white | 2.44:1 | Fails | Lc 47.9 | Large or bold text, headings |
| #63AFD2 text on black | 8.59:1 | AAA | Lc -54.1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#DFECF3
oklch(93.5% 0.017 230.9)
-
Step 200
200
#C5DEEA
oklch(88.6% 0.031 228.2)
-
Step 300
300
#9BC8DE
oklch(80.8% 0.057 229.4)
-
Step 400
400 (this color)
#63AFD2
oklch(71.8% 0.091 229.6)
-
Step 500
500
#2296C2
oklch(63.2% 0.116 229.6)
-
Step 600
600
#007EA7
oklch(55.5% 0.111 230)
-
Step 700
700
#006A8D
oklch(49.1% 0.098 229.8)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900
#004861
oklch(37.6% 0.075 229.8)
-
Step 950
950
#062B39
oklch(27.1% 0.048 228.1)
#63AFD2 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) | #9DADD4 | 0.065 |
| Deuteranopia (no green cones) | #8DA0D2 | 0.058 |
| Tritanopia (no blue cones) | #17B9BA | 0.067 |
| Achromatopsia (no color) | #A6A6A6 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63AFD2
#63AFD2
oklch(71.8% 0.091 229.6)
- #D39370
#D39370
oklch(71.8% 0.092 49.5)
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 #63AFD2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.049
- Turquoise Blue #06B1C4 ΔE 0.053
- Bluegrey #85A3B2 ΔE 0.055
- Bluey Grey #89A0B0 ΔE 0.062
- Cool Steel #97A7B3 ΔE 0.066
- Vivid Sky Blue #4CC9F0 ΔE 0.072
- Deep Sky Blue #00BFFF ΔE 0.073
- Cool Gray #8D99AE ΔE 0.075
Use #63AFD2 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.