#63ABBC
Closest named color: Greyblue (#77A1B5). oklch(70% 0.076 214.7), rgb(99, 171, 188).
Aa
Black text reads best on this color (8.08:1).
About this color
#63ABBC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.076 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.031 away. Black text reads best on it, at 8.08:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.08:1 |
| White text | 2.59:1 |
Values
| HEX | #63ABBC |
| RGB | rgb(99, 171, 188) |
| HSL | hsl(191, 40%, 56%) |
| OKLCH | oklch(70% 0.076 214.7) |
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 #63ABBC | 2.59:1 | Fails | Lc -55.8 | Large or bold text, headings |
| Black text on #63ABBC | 8.08:1 | AAA | Lc 53.4 | Large or bold text, headings |
| #63ABBC text on white | 2.59:1 | Fails | Lc 50.6 | Large or bold text, headings |
| #63ABBC text on black | 8.08:1 | AAA | Lc -51.3 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECF0
oklch(93.5% 0.014 219.6)
-
Step 200
200
#C6DEE4
oklch(88.5% 0.027 214.4)
-
Step 300
300
#9EC9D4
oklch(80.9% 0.048 215.1)
-
Step 400
400 (this color)
#63ABBC
oklch(70% 0.076 214.7)
-
Step 500
500
#3098AE
oklch(63.1% 0.097 215)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#005968
oklch(42.7% 0.075 214.2)
-
Step 900
900
#074A56
oklch(37.7% 0.063 213.8)
-
Step 950
950
#092B33
oklch(26.9% 0.041 216.6)
#63ABBC 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) | #9FA7BD | 0.070 |
| Deuteranopia (no green cones) | #919CBC | 0.063 |
| Tritanopia (no blue cones) | #35B2B0 | 0.045 |
| Achromatopsia (no color) | #A1A1A1 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63ABBC
#63ABBC
oklch(70% 0.076 214.7)
- #C98E7F
#C98E7F
oklch(70.1% 0.076 34.8)
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 #63ABBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.031
- Bluegrey #85A3B2 ΔE 0.039
- Turquoise Blue #06B1C4 ΔE 0.044
- Bluey Grey #89A0B0 ΔE 0.047
- Cadet Blue #5F9EA0 ΔE 0.049
- Light Sea Green #20B2AA ΔE 0.057
- Cool Steel #97A7B3 ΔE 0.058
- Cool Grey #95A3A6 ΔE 0.060
Use #63ABBC 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.