#368FDF
Closest named color: Dark Sky Blue (#448EE4). oklch(63.5% 0.147 249.4), rgb(54, 143, 223).
Aa
Black text reads best on this color (6.15:1).
About this color
#368FDF is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.147 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.013 away. Black text reads best on it, at 6.15:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.15:1 |
| White text | 3.41:1 |
Values
| HEX | #368FDF |
| RGB | rgb(54, 143, 223) |
| HSL | hsl(208, 73%, 54%) |
| OKLCH | oklch(63.5% 0.147 249.4) |
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 #368FDF | 3.41:1 | AA large text | Lc -66.7 | Content text, not long reading |
| Black text on #368FDF | 6.15:1 | AA | Lc 42.8 | Non-text elements, placeholder text |
| #368FDF text on white | 3.41:1 | AA large text | Lc 61.3 | Content text, not long reading |
| #368FDF text on black | 6.15:1 | AA | Lc -40.4 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C6DCF3
oklch(88.5% 0.04 249.5)
-
Step 300
300
#9DC5EE
oklch(80.9% 0.072 249.4)
-
Step 400
400
#65A6E5
oklch(70.8% 0.114 249)
-
Step 500
500 (this color)
#368FDF
oklch(63.5% 0.147 249.4)
-
Step 600
600
#0076C9
oklch(55.6% 0.155 249.4)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#0D4472
oklch(37.8% 0.096 249.2)
-
Step 950
950
#0B2843
oklch(27.1% 0.061 249.8)
#368FDF 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) | #6A93E2 | 0.049 |
| Deuteranopia (no green cones) | #5184DD | 0.033 |
| Tritanopia (no blue cones) | #00A2AC | 0.108 |
| Achromatopsia (no color) | #8B8B8B | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #368FDF
#368FDF
oklch(63.5% 0.147 249.4)
- #BF7900
#BF7900
oklch(63.5% 0.138 69.7)
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 #368FDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.013
- Chefchaouen Blue #4895EF ΔE 0.032
- Water Blue #0E87CC ΔE 0.041
- Soft Blue #6488EA ΔE 0.047
- Dodger Blue #1E90FF ΔE 0.048
- Cornflower Blue #6495ED ΔE 0.050
- Cool Blue #4984B8 ΔE 0.060
- Faded Blue #658CBB ΔE 0.064
Use #368FDF 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.