#5FB4FF
Closest named color: Deep Sky Blue (#00BFFF). oklch(74.8% 0.137 247.4), rgb(95, 180, 255).
Aa
Black text reads best on this color (9.45:1).
About this color
#5FB4FF is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.137 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.044 away. Black text reads best on it, at 9.45:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.45:1 |
| White text | 2.22:1 |
Values
| HEX | #5FB4FF |
| RGB | rgb(95, 180, 255) |
| HSL | hsl(208, 100%, 69%) |
| OKLCH | oklch(74.8% 0.137 247.4) |
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 #5FB4FF | 2.22:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #5FB4FF | 9.45:1 | AAA | Lc 60.5 | Content text, not long reading |
| #5FB4FF text on white | 2.22:1 | Fails | Lc 43.5 | Non-text elements, placeholder text |
| #5FB4FF text on black | 9.45:1 | AAA | Lc -58.7 | 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
#DDECFA
oklch(93.6% 0.025 246.2)
-
Step 200
200
#C1DDF8
oklch(88.6% 0.048 247.4)
-
Step 300
300
#94C6F5
oklch(80.8% 0.085 247.4)
-
Step 400
400 (this color)
#5FB4FF
oklch(74.8% 0.137 247.4)
-
Step 500
500
#008EE8
oklch(63% 0.168 247.5)
-
Step 600
600
#0077C4
oklch(55.5% 0.148 247.6)
-
Step 700
700
#0064A6
oklch(49.1% 0.131 247.6)
-
Step 800
800
#005289
oklch(42.7% 0.113 247.3)
-
Step 900
900
#004473
oklch(37.7% 0.1 247.4)
-
Step 950
950
#002847
oklch(27% 0.072 247.4)
#5FB4FF 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) | #93B7FF | 0.054 |
| Deuteranopia (no green cones) | #7EA7FE | 0.042 |
| Tritanopia (no blue cones) | #00C6CE | 0.107 |
| Achromatopsia (no color) | #AEAEAE | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5FB4FF
#5FB4FF
oklch(74.8% 0.137 247.4)
- #E69B41
#E69B41
oklch(74.8% 0.137 67.5)
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 #5FB4FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.044
- Carolina Blue #8AB8FE ΔE 0.045
- Vivid Sky Blue #4CC9F0 ΔE 0.067
- Lightblue #7BC8F6 ΔE 0.067
- Bright Sky Blue #02CCFE ΔE 0.069
- Sky #82CAFC ΔE 0.073
- Pastel Blue #A2BFFE ΔE 0.080
- Periwinkle Blue #8F99FB ΔE 0.080
Use #5FB4FF 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.