#63ABC5
Closest named color: Greyblue (#77A1B5). oklch(70.4% 0.082 223.4), rgb(99, 171, 197).
Aa
Black text reads best on this color (8.16:1).
About this color
#63ABC5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.082 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.033 away. Black text reads best on it, at 8.16:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.16:1 |
| White text | 2.57:1 |
Values
| HEX | #63ABC5 |
| RGB | rgb(99, 171, 197) |
| HSL | hsl(196, 46%, 58%) |
| OKLCH | oklch(70.4% 0.082 223.4) |
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 #63ABC5 | 2.57:1 | Fails | Lc -55.3 | Large or bold text, headings |
| Black text on #63ABC5 | 8.16:1 | AAA | Lc 53.8 | Large or bold text, headings |
| #63ABC5 text on white | 2.57:1 | Fails | Lc 50.2 | Large or bold text, headings |
| #63ABC5 text on black | 8.16:1 | AAA | Lc -51.7 | 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
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C6DEE7
oklch(88.6% 0.028 222.3)
-
Step 300
300
#9EC8D9
oklch(80.8% 0.05 224.6)
-
Step 400
400 (this color)
#63ABC5
oklch(70.4% 0.082 223.4)
-
Step 500
500
#2E97B8
oklch(63.2% 0.104 223.5)
-
Step 600
600
#0080A0
oklch(55.7% 0.104 223.4)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#06495C
oklch(37.7% 0.068 223.5)
-
Step 950
950
#092B36
oklch(27.1% 0.043 223.5)
#63ABC5 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) | #9CA8C6 | 0.065 |
| Deuteranopia (no green cones) | #8E9DC5 | 0.058 |
| Tritanopia (no blue cones) | #2CB3B3 | 0.055 |
| Achromatopsia (no color) | #A1A1A1 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63ABC5
#63ABC5
oklch(70.4% 0.082 223.4)
- #CB8F76
#CB8F76
oklch(70.3% 0.082 43.5)
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 #63ABC5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.033
- Bluegrey #85A3B2 ΔE 0.043
- Turquoise Blue #06B1C4 ΔE 0.046
- Bluey Grey #89A0B0 ΔE 0.050
- Cadet Blue #5F9EA0 ΔE 0.058
- Cool Steel #97A7B3 ΔE 0.060
- Cool Gray #8D99AE ΔE 0.063
- Cool Grey #95A3A6 ΔE 0.065
Use #63ABC5 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.