#5BAAEF
Closest named color: Cornflower Blue (#6495ED). oklch(71.7% 0.128 247.1), rgb(91, 170, 239).
Aa
Black text reads best on this color (8.44:1).
About this color
#5BAAEF is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.128 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.056 away. Black text reads best on it, at 8.44:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.44:1 |
| White text | 2.48:1 |
Values
| HEX | #5BAAEF |
| RGB | rgb(91, 170, 239) |
| HSL | hsl(208, 82%, 65%) |
| OKLCH | oklch(71.7% 0.128 247.1) |
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 #5BAAEF | 2.48:1 | Fails | Lc -53.7 | Large or bold text, headings |
| Black text on #5BAAEF | 8.44:1 | AAA | Lc 55.4 | Large or bold text, headings |
| #5BAAEF text on white | 2.48:1 | Fails | Lc 48.6 | Large or bold text, headings |
| #5BAAEF text on black | 8.44:1 | AAA | Lc -53.3 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DEECF9
oklch(93.6% 0.023 246)
-
Step 200
200
#C2DDF6
oklch(88.6% 0.045 246.3)
-
Step 300
300
#97C6F2
oklch(80.9% 0.08 247.2)
-
Step 400
400 (this color)
#5BAAEF
oklch(71.7% 0.128 247.1)
-
Step 500
500
#0C8FE6
oklch(63.2% 0.163 247)
-
Step 600
600
#0078C3
oklch(55.7% 0.146 246.8)
-
Step 700
700
#0064A5
oklch(49% 0.13 247.2)
-
Step 800
800
#005288
oklch(42.7% 0.112 246.9)
-
Step 900
900
#004473
oklch(37.7% 0.1 247.4)
-
Step 950
950
#032845
oklch(26.9% 0.067 247.3)
#5BAAEF 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) | #8CACF2 | 0.052 |
| Deuteranopia (no green cones) | #789EEE | 0.039 |
| Tritanopia (no blue cones) | #00BAC2 | 0.099 |
| Achromatopsia (no color) | #A4A4A4 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BAAEF
#5BAAEF
oklch(71.7% 0.128 247.1)
- #D89341
#D89341
oklch(71.7% 0.128 67.7)
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 #5BAAEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.056
- Deep Sky Blue #00BFFF ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.062
- Carolina Blue #8AB8FE ΔE 0.067
- Periwinkle Blue #8F99FB ΔE 0.073
- Dark Sky Blue #448EE4 ΔE 0.081
- Greyblue #77A1B5 ΔE 0.084
- Vivid Sky Blue #4CC9F0 ΔE 0.085
Use #5BAAEF 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.