#64B4CE
Closest named color: Turquoise Blue (#06B1C4). oklch(72.9% 0.087 221.3), rgb(100, 180, 206).
Aa
Black text reads best on this color (8.96:1).
About this color
#64B4CE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.087 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.051 away. Black text reads best on it, at 8.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.96:1 |
| White text | 2.34:1 |
Values
| HEX | #64B4CE |
| RGB | rgb(100, 180, 206) |
| HSL | hsl(195, 52%, 60%) |
| OKLCH | oklch(72.9% 0.087 221.3) |
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 #64B4CE | 2.34:1 | Fails | Lc -51.0 | Large or bold text, headings |
| Black text on #64B4CE | 8.96:1 | AAA | Lc 57.9 | Large or bold text, headings |
| #64B4CE text on white | 2.34:1 | Fails | Lc 46.0 | Large or bold text, headings |
| #64B4CE text on black | 8.96:1 | AAA | Lc -56.0 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DFEDF1
oklch(93.7% 0.016 216.7)
-
Step 200
200
#C4DEE7
oklch(88.4% 0.03 220.6)
-
Step 300
300
#9AC9DA
oklch(80.8% 0.055 222.1)
-
Step 400
400 (this color)
#64B4CE
oklch(72.9% 0.087 221.3)
-
Step 500
500
#1998B9
oklch(63.1% 0.111 221.5)
-
Step 600
600
#00809D
oklch(55.6% 0.102 221.1)
-
Step 700
700
#006C85
oklch(49.2% 0.09 221.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#00495B
oklch(37.6% 0.069 221.4)
-
Step 950
950
#042B36
oklch(26.9% 0.046 221.4)
#64B4CE 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) | #A4B0CF | 0.071 |
| Deuteranopia (no green cones) | #95A4CE | 0.065 |
| Tritanopia (no blue cones) | #20BDBC | 0.057 |
| Achromatopsia (no color) | #A9A9A9 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64B4CE
#64B4CE
oklch(72.9% 0.087 221.3)
- #D7957D
#D7957D
oklch(72.9% 0.087 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 #64B4CE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.051
- Greyblue #77A1B5 ΔE 0.055
- Bluegrey #85A3B2 ΔE 0.057
- Vivid Sky Blue #4CC9F0 ΔE 0.064
- Cool Steel #97A7B3 ΔE 0.064
- Bluey Grey #89A0B0 ΔE 0.065
- Light Grey Blue #9DBCD4 ΔE 0.068
- Light Cornflower Blue #98C1D9 ΔE 0.070
Use #64B4CE 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.