#5FB5DE
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(73.5% 0.102 231), rgb(95, 181, 222).
Aa
Black text reads best on this color (9.15:1).
About this color
#5FB5DE is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.102 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.053 away. Black text reads best on it, at 9.15:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.15:1 |
| White text | 2.29:1 |
Values
| HEX | #5FB5DE |
| RGB | rgb(95, 181, 222) |
| HSL | hsl(199, 66%, 62%) |
| OKLCH | oklch(73.5% 0.102 231) |
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 #5FB5DE | 2.29:1 | Fails | Lc -49.9 | Large or bold text, headings |
| Black text on #5FB5DE | 9.15:1 | AAA | Lc 58.9 | Large or bold text, headings |
| #5FB5DE text on white | 2.29:1 | Fails | Lc 45.1 | Large or bold text, headings |
| #5FB5DE text on black | 9.15:1 | AAA | Lc -57.0 | 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
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DEECF4
oklch(93.5% 0.018 232.5)
-
Step 200
200
#C3DEED
oklch(88.5% 0.035 232.1)
-
Step 300
300
#97C9E3
oklch(81% 0.064 231.2)
-
Step 400
400 (this color)
#5FB5DE
oklch(73.5% 0.102 231)
-
Step 500
500
#0096C8
oklch(63.1% 0.127 231)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900
#004862
oklch(37.7% 0.076 230.8)
-
Step 950
950
#012B3C
oklch(27.1% 0.054 230.9)
#5FB5DE 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) | #A1B3E0 | 0.071 |
| Deuteranopia (no green cones) | #8FA5DD | 0.062 |
| Tritanopia (no blue cones) | #00C0C2 | 0.072 |
| Achromatopsia (no color) | #ABABAB | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5FB5DE
#5FB5DE
oklch(73.5% 0.102 231)
- #DD966D
#DD966D
oklch(73.4% 0.102 50.6)
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 #5FB5DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.053
- Deep Sky Blue #00BFFF ΔE 0.055
- Turquoise Blue #06B1C4 ΔE 0.061
- Lightblue #7BC8F6 ΔE 0.065
- Carolina Blue #8AB8FE ΔE 0.067
- Bright Sky Blue #02CCFE ΔE 0.069
- Greyblue #77A1B5 ΔE 0.069
- Light Grey Blue #9DBCD4 ΔE 0.071
Use #5FB5DE 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.