#05B0FC
Closest named color: Deep Sky Blue (#00BFFF). oklch(72% 0.16 238.4), rgb(5, 176, 252).
Aa
Black text reads best on this color (8.62:1).
About this color
#05B0FC is a medium-light, vivid blue. In OKLCH its lightness is 72%, its chroma 0.160 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.041 away. Black text reads best on it, at 8.62:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 8.62:1 |
| White text | 2.43:1 |
Values
| HEX | #05B0FC |
| RGB | rgb(5, 176, 252) |
| HSL | hsl(198, 98%, 50%) |
| OKLCH | oklch(72% 0.16 238.4) |
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 #05B0FC | 2.43:1 | Fails | Lc -52.2 | Large or bold text, headings |
| Black text on #05B0FC | 8.62:1 | AAA | Lc 56.8 | Large or bold text, headings |
| #05B0FC text on white | 2.43:1 | Fails | Lc 47.2 | Large or bold text, headings |
| #05B0FC text on black | 8.62:1 | AAA | Lc -54.8 | 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
#EEF7FE
oklch(97.1% 0.013 241)
-
Step 100
100
#D9EDFB
oklch(93.6% 0.028 238.2)
-
Step 200
200
#B8DFFA
oklch(88.5% 0.055 238.5)
-
Step 300
300
#81CAFA
oklch(80.9% 0.1 238.5)
-
Step 400
400 (this color)
#05B0FC
oklch(72% 0.16 238.4)
-
Step 500
500
#0093D4
oklch(63% 0.141 238.5)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006897
oklch(49.1% 0.109 238.1)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900
#004769
oklch(37.8% 0.084 238.3)
-
Step 950
950
#002A40
oklch(27% 0.06 237.8)
#05B0FC 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) | #8BB1FF | 0.085 |
| Deuteranopia (no green cones) | #6D9DFB | 0.068 |
| Tritanopia (no blue cones) | #00C3CB | 0.102 |
| Achromatopsia (no color) | #A6A6A6 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05B0FC
#05B0FC
oklch(72% 0.16 238.4)
- #EC8724
#EC8724
oklch(71.9% 0.16 58.4)
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 #05B0FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.041
- Chefchaouen Blue #4895EF ΔE 0.071
- Cornflower Blue #6495ED ΔE 0.077
- Bright Sky Blue #02CCFE ΔE 0.077
- Vivid Sky Blue #4CC9F0 ΔE 0.083
- Turquoise Blue #06B1C4 ΔE 0.086
- Dodger Blue #1E90FF ΔE 0.087
- Carolina Blue #8AB8FE ΔE 0.088
Use #05B0FC 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.