#64A2C8
Closest named color: Greyblue (#77A1B5). oklch(68.5% 0.085 236.8), rgb(100, 162, 200).
Aa
Black text reads best on this color (7.54:1).
About this color
#64A2C8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.085 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.032 away. Black text reads best on it, at 7.54:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.54:1 |
| White text | 2.78:1 |
Values
| HEX | #64A2C8 |
| RGB | rgb(100, 162, 200) |
| HSL | hsl(203, 48%, 59%) |
| OKLCH | oklch(68.5% 0.085 236.8) |
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 #64A2C8 | 2.78:1 | Fails | Lc -58.8 | Large or bold text, headings |
| Black text on #64A2C8 | 7.54:1 | AAA | Lc 50.5 | Large or bold text, headings |
| #64A2C8 text on white | 2.78:1 | Fails | Lc 53.5 | Large or bold text, headings |
| #64A2C8 text on black | 7.54:1 | AAA | Lc -48.3 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DDEB
oklch(88.6% 0.03 236.9)
-
Step 300
300
#A1C7DF
oklch(81% 0.053 236)
-
Step 400
400 (this color)
#64A2C8
oklch(68.5% 0.085 236.8)
-
Step 500
500
#3D93C3
oklch(63.2% 0.109 236.7)
-
Step 600
600
#0A7CAF
oklch(55.5% 0.118 236.7)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#04557A
oklch(42.6% 0.091 236.9)
-
Step 900
900
#134762
oklch(37.8% 0.07 236.1)
-
Step 950
950
#0D2A3A
oklch(27.1% 0.045 236.1)
#64A2C8 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) | #91A1CA | 0.052 |
| Deuteranopia (no green cones) | #8396C7 | 0.045 |
| Tritanopia (no blue cones) | #30ACAE | 0.068 |
| Achromatopsia (no color) | #9B9B9B | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A2C8
#64A2C8
oklch(68.5% 0.085 236.8)
- #C28C65
#C28C65
oklch(68.4% 0.085 56.6)
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 #64A2C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.032
- Bluegrey #85A3B2 ΔE 0.048
- Bluey Grey #89A0B0 ΔE 0.051
- Cool Gray #8D99AE ΔE 0.056
- Cadet Blue #5F9EA0 ΔE 0.060
- Faded Blue #658CBB ΔE 0.060
- Turquoise Blue #06B1C4 ΔE 0.061
- Silver Lake Blue #778DA9 ΔE 0.064
Use #64A2C8 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.