#64B2DF
Closest named color: Deep Sky Blue (#00BFFF). oklch(73.1% 0.101 235.7), rgb(100, 178, 223).
Aa
Black text reads best on this color (8.97:1).
About this color
#64B2DF is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.101 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.058 away. Black text reads best on it, at 8.97:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 8.97:1 |
| White text | 2.33:1 |
Values
| HEX | #64B2DF |
| RGB | rgb(100, 178, 223) |
| HSL | hsl(202, 66%, 63%) |
| OKLCH | oklch(73.1% 0.101 235.7) |
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 #64B2DF | 2.33:1 | Fails | Lc -50.9 | Large or bold text, headings |
| Black text on #64B2DF | 8.97:1 | AAA | Lc 58.0 | Large or bold text, headings |
| #64B2DF text on white | 2.33:1 | Fails | Lc 46.0 | Large or bold text, headings |
| #64B2DF text on black | 8.97:1 | 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
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C4DDEE
oklch(88.4% 0.036 237.6)
-
Step 300
300
#9AC8E4
oklch(81% 0.063 235.3)
-
Step 400
400 (this color)
#64B2DF
oklch(73.1% 0.101 235.7)
-
Step 500
500
#1994CC
oklch(63.1% 0.129 235.6)
-
Step 600
600
#007DAF
oklch(55.7% 0.119 235.4)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800
#00567A
oklch(42.8% 0.091 235.4)
-
Step 900
900
#004766
oklch(37.6% 0.081 235.8)
-
Step 950
950
#042A3D
oklch(27% 0.054 235.8)
#64B2DF 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) | #9DB1E1 | 0.063 |
| Deuteranopia (no green cones) | #8CA4DE | 0.053 |
| Tritanopia (no blue cones) | #00BEC1 | 0.078 |
| Achromatopsia (no color) | #A9A9A9 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64B2DF
#64B2DF
oklch(73.1% 0.101 235.7)
- #D99768
#D99768
oklch(73.1% 0.101 55.9)
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 #64B2DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.058
- Vivid Sky Blue #4CC9F0 ΔE 0.061
- Carolina Blue #8AB8FE ΔE 0.063
- Turquoise Blue #06B1C4 ΔE 0.065
- Greyblue #77A1B5 ΔE 0.066
- Lightblue #7BC8F6 ΔE 0.069
- Bluegrey #85A3B2 ΔE 0.070
- Light Grey Blue #9DBCD4 ΔE 0.073
Use #64B2DF 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.