#64AFBE
Closest named color: Greyblue (#77A1B5). oklch(71.1% 0.078 212), rgb(100, 175, 190).
Aa
Black text reads best on this color (8.41:1).
About this color
#64AFBE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.078 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.039 away. Black text reads best on it, at 8.41:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.41:1 |
| White text | 2.49:1 |
Values
| HEX | #64AFBE |
| RGB | rgb(100, 175, 190) |
| HSL | hsl(190, 41%, 57%) |
| OKLCH | oklch(71.1% 0.078 212) |
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 #64AFBE | 2.49:1 | Fails | Lc -53.9 | Large or bold text, headings |
| Black text on #64AFBE | 8.41:1 | AAA | Lc 55.1 | Large or bold text, headings |
| #64AFBE text on white | 2.49:1 | Fails | Lc 48.9 | Large or bold text, headings |
| #64AFBE text on black | 8.41:1 | AAA | Lc -53.1 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0EDEF
oklch(93.7% 0.014 207.9)
-
Step 200
200
#C6DEE3
oklch(88.4% 0.026 211.6)
-
Step 300
300
#9DCAD3
oklch(81% 0.049 211.2)
-
Step 400
400 (this color)
#64AFBE
oklch(71.1% 0.078 212)
-
Step 500
500
#2A99AC
oklch(63.1% 0.099 211.8)
-
Step 600
600
#008294
oklch(55.7% 0.097 211.6)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#024A55
oklch(37.6% 0.065 211.8)
-
Step 950
950
#082C32
oklch(27.1% 0.041 210.9)
#64AFBE 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) | #A3AABF | 0.073 |
| Deuteranopia (no green cones) | #959FBE | 0.067 |
| Tritanopia (no blue cones) | #35B6B3 | 0.044 |
| Achromatopsia (no color) | #A4A4A4 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64AFBE
#64AFBE
oklch(71.1% 0.078 212)
- #CE9084
#CE9084
oklch(71.1% 0.078 31.3)
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 #64AFBE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.039
- Bluegrey #85A3B2 ΔE 0.043
- Turquoise Blue #06B1C4 ΔE 0.044
- Bluey Grey #89A0B0 ΔE 0.052
- Light Sea Green #20B2AA ΔE 0.056
- Cadet Blue #5F9EA0 ΔE 0.057
- Cool Steel #97A7B3 ΔE 0.057
- Cool Grey #95A3A6 ΔE 0.061
Use #64AFBE 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.