#64A8CA
Closest named color: Greyblue (#77A1B5). oklch(70% 0.085 231.5), rgb(100, 168, 202).
Aa
Black text reads best on this color (7.99:1).
About this color
#64A8CA is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.085 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.034 away. Black text reads best on it, at 7.99:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.99:1 |
| White text | 2.62:1 |
Values
| HEX | #64A8CA |
| RGB | rgb(100, 168, 202) |
| HSL | hsl(200, 49%, 59%) |
| OKLCH | oklch(70% 0.085 231.5) |
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 #64A8CA | 2.62:1 | Fails | Lc -56.2 | Large or bold text, headings |
| Black text on #64A8CA | 7.99:1 | AAA | Lc 52.9 | Large or bold text, headings |
| #64A8CA text on white | 2.62:1 | Fails | Lc 51.1 | Large or bold text, headings |
| #64A8CA text on black | 7.99:1 | AAA | Lc -50.8 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C7DDE9
oklch(88.5% 0.029 231.5)
-
Step 300
300
#9FC7DD
oklch(80.8% 0.053 232.3)
-
Step 400
400 (this color)
#64A8CA
oklch(70% 0.085 231.5)
-
Step 500
500
#3495BF
oklch(63.2% 0.108 230.9)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005776
oklch(42.8% 0.087 231.2)
-
Step 900
900
#0B4860
oklch(37.8% 0.07 230.6)
-
Step 950
950
#0B2A38
oklch(27% 0.044 231.3)
#64A8CA 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) | #97A6CC | 0.059 |
| Deuteranopia (no green cones) | #899BCA | 0.052 |
| Tritanopia (no blue cones) | #2BB1B3 | 0.063 |
| Achromatopsia (no color) | #A0A0A0 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A8CA
#64A8CA
oklch(70% 0.085 231.5)
- #C98F6D
#C98F6D
oklch(69.9% 0.085 51.3)
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 #64A8CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.034
- Bluegrey #85A3B2 ΔE 0.045
- Bluey Grey #89A0B0 ΔE 0.051
- Turquoise Blue #06B1C4 ΔE 0.053
- Cool Gray #8D99AE ΔE 0.061
- Cadet Blue #5F9EA0 ΔE 0.063
- Cool Steel #97A7B3 ΔE 0.064
- Cool Grey #95A3A6 ΔE 0.070
Use #64A8CA 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.