#64B2DE
Closest named color: Deep Sky Blue (#00BFFF). oklch(73.1% 0.1 235.1), rgb(100, 178, 222).
Aa
Black text reads best on this color (8.96:1).
About this color
#64B2DE is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.100 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.059 away. Black text reads best on it, at 8.96:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 8.96:1 |
| White text | 2.34:1 |
Values
| HEX | #64B2DE |
| RGB | rgb(100, 178, 222) |
| HSL | hsl(202, 65%, 63%) |
| OKLCH | oklch(73.1% 0.1 235.1) |
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 #64B2DE | 2.34:1 | Fails | Lc -50.9 | Large or bold text, headings |
| Black text on #64B2DE | 8.96:1 | AAA | Lc 58.0 | Large or bold text, headings |
| #64B2DE text on white | 2.34:1 | Fails | Lc 46.0 | Large or bold text, headings |
| #64B2DE text on black | 8.96:1 | AAA | Lc -56.1 | 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
#DFECF4
oklch(93.6% 0.018 234.5)
-
Step 200
200
#C4DDED
oklch(88.4% 0.035 235.9)
-
Step 300
300
#9AC8E4
oklch(81% 0.063 235.3)
-
Step 400
400 (this color)
#64B2DE
oklch(73.1% 0.1 235.1)
-
Step 500
500
#1A94CB
oklch(63% 0.128 235.2)
-
Step 600
600
#007DAE
oklch(55.7% 0.118 234.9)
-
Step 700
700
#006993
oklch(49.2% 0.104 234.9)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#004766
oklch(37.6% 0.081 235.8)
-
Step 950
950
#052A3C
oklch(27% 0.052 234.9)
#64B2DE 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) | #9DB1E0 | 0.063 |
| Deuteranopia (no green cones) | #8CA4DD | 0.053 |
| Tritanopia (no blue cones) | #00BEC1 | 0.077 |
| Achromatopsia (no color) | #A9A9A9 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64B2DE
#64B2DE
oklch(73.1% 0.1 235.1)
- #D99769
#D99769
oklch(73.1% 0.1 55.3)
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 #64B2DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.059
- Vivid Sky Blue #4CC9F0 ΔE 0.061
- Turquoise Blue #06B1C4 ΔE 0.064
- Carolina Blue #8AB8FE ΔE 0.065
- Greyblue #77A1B5 ΔE 0.065
- Bluegrey #85A3B2 ΔE 0.069
- Lightblue #7BC8F6 ΔE 0.069
- Light Grey Blue #9DBCD4 ΔE 0.072
Use #64B2DE 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.