#64A6BB
Closest named color: Greyblue (#77A1B5). oklch(68.9% 0.074 220.4), rgb(100, 166, 187).
Aa
Black text reads best on this color (7.71:1).
About this color
#64A6BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.074 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.022 away. Black text reads best on it, at 7.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.71:1 |
| White text | 2.72:1 |
Values
| HEX | #64A6BB |
| RGB | rgb(100, 166, 187) |
| HSL | hsl(194, 39%, 56%) |
| OKLCH | oklch(68.9% 0.074 220.4) |
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 #64A6BB | 2.72:1 | Fails | Lc -57.8 | Large or bold text, headings |
| Black text on #64A6BB | 7.71:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #64A6BB text on white | 2.72:1 | Fails | Lc 52.6 | Large or bold text, headings |
| #64A6BB text on black | 7.71:1 | AAA | Lc -49.3 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C8DDE5
oklch(88.4% 0.025 222.6)
-
Step 300
300
#A0C8D6
oklch(80.9% 0.047 221.2)
-
Step 400
400 (this color)
#64A6BB
oklch(68.9% 0.074 220.4)
-
Step 500
500
#3A96B1
oklch(63% 0.094 220.8)
-
Step 600
600
#00809C
oklch(55.5% 0.101 220.3)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#104958
oklch(37.7% 0.061 219.8)
-
Step 950
950
#0C2B34
oklch(27.1% 0.04 220.3)
#64A6BB 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) | #99A2BC | 0.062 |
| Deuteranopia (no green cones) | #8C98BB | 0.057 |
| Tritanopia (no blue cones) | #3AADAD | 0.046 |
| Achromatopsia (no color) | #9D9D9D | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A6BB
#64A6BB
oklch(68.9% 0.074 220.4)
- #C38C78
#C38C78
oklch(68.9% 0.074 40.8)
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 #64A6BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.022
- Bluegrey #85A3B2 ΔE 0.036
- Cadet Blue #5F9EA0 ΔE 0.042
- Bluey Grey #89A0B0 ΔE 0.042
- Turquoise Blue #06B1C4 ΔE 0.050
- Cool Gray #8D99AE ΔE 0.054
- Cool Steel #97A7B3 ΔE 0.060
- Cool Grey #95A3A6 ΔE 0.060
Use #64A6BB 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.