#65BBEF
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(75.9% 0.112 237.3), rgb(101, 187, 239).
Aa
Black text reads best on this color (9.90:1).
About this color
#65BBEF is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.112 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.039 away. Black text reads best on it, at 9.90:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.90:1 |
| White text | 2.11:1 |
Values
| HEX | #65BBEF |
| RGB | rgb(101, 187, 239) |
| HSL | hsl(203, 81%, 67%) |
| OKLCH | oklch(75.9% 0.112 237.3) |
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 #65BBEF | 2.11:1 | Fails | Lc -46.0 | Large or bold text, headings |
| Black text on #65BBEF | 9.90:1 | AAA | Lc 62.6 | Content text, not long reading |
| #65BBEF text on white | 2.11:1 | Fails | Lc 41.3 | Non-text elements, placeholder text |
| #65BBEF text on black | 9.90:1 | AAA | Lc -60.9 | 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
#D7EEFD
oklch(93.7% 0.032 236.3)
-
Step 200
200
#B3E0FE
oklch(88.5% 0.063 237.6)
-
Step 300
300 (this color)
#65BBEF
oklch(75.9% 0.112 237.3)
-
Step 400
400
#00ACF4
oklch(70.6% 0.155 237.4)
-
Step 500
500
#0094D2
oklch(63.2% 0.138 237.1)
-
Step 600
600
#007CB1
oklch(55.6% 0.122 237.2)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950
#002A40
oklch(27% 0.06 237.8)
#65BBEF 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) | #A3BAF1 | 0.066 |
| Deuteranopia (no green cones) | #90ACEE | 0.055 |
| Tritanopia (no blue cones) | #00C8CC | 0.084 |
| Achromatopsia (no color) | #B2B2B2 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #65BBEF
#65BBEF
oklch(75.9% 0.112 237.3)
- #E69E67
#E69E67
oklch(75.8% 0.112 57.4)
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 #65BBEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.039
- Lightblue #7BC8F6 ΔE 0.043
- Deep Sky Blue #00BFFF ΔE 0.043
- Carolina Blue #8AB8FE ΔE 0.045
- Sky #82CAFC ΔE 0.053
- Bright Sky Blue #02CCFE ΔE 0.053
- Light Sky Blue #87CEFA ΔE 0.064
- Light Cornflower Blue #98C1D9 ΔE 0.065
Use #65BBEF 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.