#5BA5EF
Closest named color: Cornflower Blue (#6495ED). oklch(70.6% 0.132 250.2), rgb(91, 165, 239).
Aa
Black text reads best on this color (8.07:1).
About this color
#5BA5EF is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.132 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.042 away. Black text reads best on it, at 8.07:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.07:1 |
| White text | 2.60:1 |
Values
| HEX | #5BA5EF |
| RGB | rgb(91, 165, 239) |
| HSL | hsl(210, 82%, 65%) |
| OKLCH | oklch(70.6% 0.132 250.2) |
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 #5BA5EF | 2.60:1 | Fails | Lc -55.7 | Large or bold text, headings |
| Black text on #5BA5EF | 8.07:1 | AAA | Lc 53.4 | Large or bold text, headings |
| #5BA5EF text on white | 2.60:1 | Fails | Lc 50.6 | Large or bold text, headings |
| #5BA5EF text on black | 8.07:1 | AAA | Lc -51.4 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECFA
oklch(93.7% 0.024 248.1)
-
Step 200
200
#C3DCF7
oklch(88.5% 0.046 250.4)
-
Step 300
300
#98C5F4
oklch(80.8% 0.082 250)
-
Step 400
400 (this color)
#5BA5EF
oklch(70.6% 0.132 250.2)
-
Step 500
500
#1D8CEA
oklch(63% 0.169 250.3)
-
Step 600
600
#0075CB
oklch(55.5% 0.159 250.4)
-
Step 700
700
#0063AC
oklch(49.2% 0.139 250)
-
Step 800
800
#00518E
oklch(42.8% 0.121 249.9)
-
Step 900
900
#004378
oklch(37.8% 0.108 250.3)
-
Step 950
950
#052847
oklch(27.2% 0.069 249.8)
#5BA5EF 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) | #85A8F2 | 0.046 |
| Deuteranopia (no green cones) | #719AEE | 0.033 |
| Tritanopia (no blue cones) | #00B6BF | 0.105 |
| Achromatopsia (no color) | #A0A0A0 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BA5EF
#5BA5EF
oklch(70.6% 0.132 250.2)
- #D49035
#D49035
oklch(70.6% 0.132 70)
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 #5BA5EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.042
- Chefchaouen Blue #4895EF ΔE 0.049
- Periwinkle Blue #8F99FB ΔE 0.067
- Dark Sky Blue #448EE4 ΔE 0.068
- Deep Sky Blue #00BFFF ΔE 0.071
- Soft Blue #6488EA ΔE 0.076
- Carolina Blue #8AB8FE ΔE 0.076
- Dodger Blue #1E90FF ΔE 0.080
Use #5BA5EF 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.