#64AAB5
Closest named color: Greyblue (#77A1B5). oklch(69.6% 0.072 208.5), rgb(100, 170, 181).
Aa
Black text reads best on this color (7.95:1).
About this color
#64AAB5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.072 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.030 away. Black text reads best on it, at 7.95:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.95:1 |
| White text | 2.63:1 |
Values
| HEX | #64AAB5 |
| RGB | rgb(100, 170, 181) |
| HSL | hsl(188, 35%, 55%) |
| OKLCH | oklch(69.6% 0.072 208.5) |
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 #64AAB5 | 2.63:1 | Fails | Lc -56.5 | Large or bold text, headings |
| Black text on #64AAB5 | 7.95:1 | AAA | Lc 52.7 | Large or bold text, headings |
| #64AAB5 text on white | 2.63:1 | Fails | Lc 51.3 | Large or bold text, headings |
| #64AAB5 text on black | 7.95:1 | AAA | Lc -50.6 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E0ECEE
oklch(93.5% 0.013 208.8)
-
Step 200
200
#C7DEE2
oklch(88.5% 0.025 209.3)
-
Step 300
300
#9FC9D0
oklch(80.8% 0.045 208.8)
-
Step 400
400 (this color)
#64AAB5
oklch(69.6% 0.072 208.5)
-
Step 500
500
#3599A7
oklch(63.2% 0.092 208.3)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#0C4A52
oklch(37.6% 0.06 208.2)
-
Step 950
950
#0B2C30
oklch(27.1% 0.038 206.4)
#64AAB5 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) | #9FA5B6 | 0.070 |
| Deuteranopia (no green cones) | #929BB5 | 0.064 |
| Tritanopia (no blue cones) | #3DB0AD | 0.037 |
| Achromatopsia (no color) | #9F9F9F | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64AAB5
#64AAB5
oklch(69.6% 0.072 208.5)
- #C68C84
#C68C84
oklch(69.5% 0.072 27.8)
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 #64AAB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.030
- Bluegrey #85A3B2 ΔE 0.038
- Cadet Blue #5F9EA0 ΔE 0.041
- Bluey Grey #89A0B0 ΔE 0.046
- Turquoise Blue #06B1C4 ΔE 0.047
- Light Sea Green #20B2AA ΔE 0.052
- Cool Grey #95A3A6 ΔE 0.057
- Cool Steel #97A7B3 ΔE 0.058
Use #64AAB5 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.