#64BBF8
Closest named color: Carolina Blue (#8AB8FE). oklch(76.2% 0.122 241.4), rgb(100, 187, 248).
Aa
Black text reads best on this color (10.00:1).
About this color
#64BBF8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.122 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.039 away. Black text reads best on it, at 10.00:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.00:1 |
| White text | 2.09:1 |
Values
| HEX | #64BBF8 |
| RGB | rgb(100, 187, 248) |
| HSL | hsl(205, 91%, 68%) |
| OKLCH | oklch(76.2% 0.122 241.4) |
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 #64BBF8 | 2.09:1 | Fails | Lc -45.5 | Large or bold text, headings |
| Black text on #64BBF8 | 10.00:1 | AAA | Lc 63.1 | Content text, not long reading |
| #64BBF8 text on white | 2.09:1 | Fails | Lc 40.9 | Non-text elements, placeholder text |
| #64BBF8 text on black | 10.00:1 | AAA | Lc -61.4 | Content text, not long reading |
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 300.
-
Step 50
50
#EDF7FF
oklch(97.1% 0.015 241.8)
-
Step 100
100
#D7EDFF
oklch(93.5% 0.034 242.7)
-
Step 200
200
#B5DFFF
oklch(88.4% 0.062 241.2)
-
Step 300
300 (this color)
#64BBF8
oklch(76.2% 0.122 241.4)
-
Step 400
400
#00AAFD
oklch(70.6% 0.166 241.4)
-
Step 500
500
#0092DA
oklch(63.1% 0.148 241.4)
-
Step 600
600
#007BB8
oklch(55.7% 0.13 241.1)
-
Step 700
700
#00679B
oklch(49.1% 0.115 241)
-
Step 800
800
#005480
oklch(42.6% 0.1 241.3)
-
Step 900
900
#00466C
oklch(37.7% 0.089 241.5)
-
Step 950
950
#002942
oklch(26.9% 0.063 241.6)
#64BBF8 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) | #A0BBFB | 0.063 |
| Deuteranopia (no green cones) | #8CACF7 | 0.052 |
| Tritanopia (no blue cones) | #00CAD0 | 0.092 |
| Achromatopsia (no color) | #B3B3B3 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64BBF8
#64BBF8
oklch(76.2% 0.122 241.4)
- #E99F5C
#E99F5C
oklch(76.2% 0.121 61.5)
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 #64BBF8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.039
- Deep Sky Blue #00BFFF ΔE 0.040
- Lightblue #7BC8F6 ΔE 0.044
- Vivid Sky Blue #4CC9F0 ΔE 0.045
- Sky #82CAFC ΔE 0.052
- Bright Sky Blue #02CCFE ΔE 0.053
- Light Sky Blue #87CEFA ΔE 0.065
- Pastel Blue #A2BFFE ΔE 0.068
Use #64BBF8 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.