#64AEDB
Closest named color: Greyblue (#77A1B5). oklch(72% 0.099 237), rgb(100, 174, 219).
Aa
Black text reads best on this color (8.61:1).
About this color
#64AEDB is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.099 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.058 away. Black text reads best on it, at 8.61:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.61:1 |
| White text | 2.43:1 |
Values
| HEX | #64AEDB |
| RGB | rgb(100, 174, 219) |
| HSL | hsl(203, 62%, 63%) |
| OKLCH | oklch(72% 0.099 237) |
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 #64AEDB | 2.43:1 | Fails | Lc -52.8 | Large or bold text, headings |
| Black text on #64AEDB | 8.61:1 | AAA | Lc 56.2 | Large or bold text, headings |
| #64AEDB text on white | 2.43:1 | Fails | Lc 47.8 | Large or bold text, headings |
| #64AEDB text on black | 8.61:1 | AAA | Lc -54.2 | 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
#F0F6FA
oklch(97% 0.008 236.6)
-
Step 100
100
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C5DDED
oklch(88.5% 0.034 237)
-
Step 300
300
#9BC7E4
oklch(80.8% 0.062 237.4)
-
Step 400
400 (this color)
#64AEDB
oklch(72% 0.099 237)
-
Step 500
500
#2593CC
oklch(63% 0.127 237.4)
-
Step 600
600
#007CB1
oklch(55.6% 0.122 237.2)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#004767
oklch(37.7% 0.082 236.6)
-
Step 950
950
#072A3D
oklch(27.1% 0.052 237.4)
#64AEDB 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) | #99ADDD | 0.059 |
| Deuteranopia (no green cones) | #89A0DA | 0.051 |
| Tritanopia (no blue cones) | #03BABD | 0.079 |
| Achromatopsia (no color) | #A6A6A6 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64AEDB
#64AEDB
oklch(72% 0.099 237)
- #D49566
#D49566
oklch(72.1% 0.098 57.1)
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 #64AEDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.058
- Turquoise Blue #06B1C4 ΔE 0.062
- Bluegrey #85A3B2 ΔE 0.064
- Deep Sky Blue #00BFFF ΔE 0.066
- Bluey Grey #89A0B0 ΔE 0.069
- Carolina Blue #8AB8FE ΔE 0.070
- Vivid Sky Blue #4CC9F0 ΔE 0.072
- Cool Steel #97A7B3 ΔE 0.074
Use #64AEDB 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.