#65B5EF
Closest named color: Carolina Blue (#8AB8FE). oklch(74.5% 0.115 242), rgb(101, 181, 239).
Aa
Black text reads best on this color (9.40:1).
About this color
#65B5EF is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.115 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.046 away. Black text reads best on it, at 9.40:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.40:1 |
| White text | 2.23:1 |
Values
| HEX | #65B5EF |
| RGB | rgb(101, 181, 239) |
| HSL | hsl(205, 81%, 67%) |
| OKLCH | oklch(74.5% 0.115 242) |
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 #65B5EF | 2.23:1 | Fails | Lc -48.6 | Large or bold text, headings |
| Black text on #65B5EF | 9.40:1 | AAA | Lc 60.2 | Content text, not long reading |
| #65B5EF text on white | 2.23:1 | Fails | Lc 43.8 | Non-text elements, placeholder text |
| #65B5EF text on black | 9.40:1 | AAA | Lc -58.4 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DEECF7
oklch(93.6% 0.021 241.4)
-
Step 200
200
#C3DDF2
oklch(88.5% 0.04 242.4)
-
Step 300
300
#98C7EC
oklch(80.9% 0.072 242.5)
-
Step 400
400 (this color)
#65B5EF
oklch(74.5% 0.115 242)
-
Step 500
500
#0B92DA
oklch(63.2% 0.147 241.8)
-
Step 600
600
#007AB9
oklch(55.5% 0.132 242.1)
-
Step 700
700
#00679C
oklch(49.2% 0.116 241.5)
-
Step 800
800
#005481
oklch(42.7% 0.101 241.9)
-
Step 900
900
#00466C
oklch(37.7% 0.089 241.5)
-
Step 950
950
#032941
oklch(26.9% 0.061 242.1)
#65B5EF 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) | #9BB5F2 | 0.058 |
| Deuteranopia (no green cones) | #89A7EE | 0.049 |
| Tritanopia (no blue cones) | #00C3C9 | 0.090 |
| Achromatopsia (no color) | #ADADAD | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #65B5EF
#65B5EF
oklch(74.5% 0.115 242)
- #E19B5C
#E19B5C
oklch(74.6% 0.116 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 #65B5EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.046
- Deep Sky Blue #00BFFF ΔE 0.046
- Vivid Sky Blue #4CC9F0 ΔE 0.055
- Lightblue #7BC8F6 ΔE 0.058
- Bright Sky Blue #02CCFE ΔE 0.065
- Sky #82CAFC ΔE 0.067
- Light Cornflower Blue #98C1D9 ΔE 0.075
- Light Grey Blue #9DBCD4 ΔE 0.076
Use #65B5EF 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.