#5BADFF
Closest named color: Deep Sky Blue (#00BFFF). oklch(73.2% 0.144 250.4), rgb(91, 173, 255).
Aa
Black text reads best on this color (8.86:1).
About this color
#5BADFF is a medium-light, vivid blue. In OKLCH its lightness is 73%, its chroma 0.144 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.055 away. Black text reads best on it, at 8.86:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 8.86:1 |
| White text | 2.36:1 |
Values
| HEX | #5BADFF |
| RGB | rgb(91, 173, 255) |
| HSL | hsl(210, 100%, 68%) |
| OKLCH | oklch(73.2% 0.144 250.4) |
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 #5BADFF | 2.36:1 | Fails | Lc -51.4 | Large or bold text, headings |
| Black text on #5BADFF | 8.86:1 | AAA | Lc 57.6 | Large or bold text, headings |
| #5BADFF text on white | 2.36:1 | Fails | Lc 46.4 | Large or bold text, headings |
| #5BADFF text on black | 8.86:1 | AAA | Lc -55.6 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DDECFB
oklch(93.6% 0.026 248.1)
-
Step 200
200
#C1DCFA
oklch(88.4% 0.051 251.1)
-
Step 300
300
#94C5F9
oklch(80.8% 0.09 250.5)
-
Step 400
400 (this color)
#5BADFF
oklch(73.2% 0.144 250.4)
-
Step 500
500
#008CF1
oklch(63.1% 0.18 250.4)
-
Step 600
600
#0075CC
oklch(55.6% 0.16 250.6)
-
Step 700
700
#0062AC
oklch(49% 0.141 250.5)
-
Step 800
800
#00508E
oklch(42.6% 0.122 250.5)
-
Step 900
900
#004378
oklch(37.8% 0.108 250.3)
-
Step 950
950
#01274A
oklch(27% 0.077 251)
#5BADFF 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) | #89B1FF | 0.048 |
| Deuteranopia (no green cones) | #73A1FD | 0.035 |
| Tritanopia (no blue cones) | #00C0CA | 0.113 |
| Achromatopsia (no color) | #A8A8A8 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BADFF
#5BADFF
oklch(73.2% 0.144 250.4)
- #E1962C
#E1962C
oklch(73.2% 0.144 70.1)
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 #5BADFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.055
- Carolina Blue #8AB8FE ΔE 0.059
- Cornflower Blue #6495ED ΔE 0.063
- Periwinkle Blue #8F99FB ΔE 0.069
- Chefchaouen Blue #4895EF ΔE 0.069
- Vivid Sky Blue #4CC9F0 ΔE 0.085
- Bright Sky Blue #02CCFE ΔE 0.086
- Lightblue #7BC8F6 ΔE 0.087
Use #5BADFF 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.