#5FB3EB
Closest named color: Deep Sky Blue (#00BFFF). oklch(73.7% 0.115 240), rgb(95, 179, 235).
Aa
Black text reads best on this color (9.13:1).
About this color
#5FB3EB is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.115 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.047 away. Black text reads best on it, at 9.13:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.13:1 |
| White text | 2.29:1 |
Values
| HEX | #5FB3EB |
| RGB | rgb(95, 179, 235) |
| HSL | hsl(204, 78%, 65%) |
| OKLCH | oklch(73.7% 0.115 240) |
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 #5FB3EB | 2.29:1 | Fails | Lc -50.0 | Large or bold text, headings |
| Black text on #5FB3EB | 9.13:1 | AAA | Lc 58.8 | Large or bold text, headings |
| #5FB3EB text on white | 2.29:1 | Fails | Lc 45.1 | Large or bold text, headings |
| #5FB3EB text on black | 9.13:1 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DEECF7
oklch(93.6% 0.021 241.4)
-
Step 200
200
#C2DDF1
oklch(88.4% 0.04 240)
-
Step 300
300
#96C7EB
oklch(80.8% 0.072 240.6)
-
Step 400
400 (this color)
#5FB3EB
oklch(73.7% 0.115 240)
-
Step 500
500
#0093D7
oklch(63.2% 0.144 239.7)
-
Step 600
600
#007BB6
oklch(55.6% 0.128 240.2)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00557F
oklch(42.8% 0.098 239.8)
-
Step 900
900
#00466A
oklch(37.6% 0.086 240.1)
-
Step 950
950
#012A41
oklch(27.1% 0.061 239.4)
#5FB3EB 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) | #9AB3EE | 0.063 |
| Deuteranopia (no green cones) | #87A5EA | 0.051 |
| Tritanopia (no blue cones) | #00C1C6 | 0.087 |
| Achromatopsia (no color) | #ABABAB | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5FB3EB
#5FB3EB
oklch(73.7% 0.115 240)
- #DF985B
#DF985B
oklch(73.8% 0.115 60.2)
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 #5FB3EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.047
- Carolina Blue #8AB8FE ΔE 0.055
- Vivid Sky Blue #4CC9F0 ΔE 0.059
- Lightblue #7BC8F6 ΔE 0.066
- Bright Sky Blue #02CCFE ΔE 0.069
- Sky #82CAFC ΔE 0.075
- Turquoise Blue #06B1C4 ΔE 0.076
- Light Grey Blue #9DBCD4 ΔE 0.080
Use #5FB3EB 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.