#4193CF
Closest named color: Dark Sky Blue (#448EE4). oklch(63.9% 0.12 243.5), rgb(65, 147, 207).
Aa
Black text reads best on this color (6.29:1).
About this color
#4193CF is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.120 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.038 away. Black text reads best on it, at 6.29:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.29:1 |
| White text | 3.33:1 |
Values
| HEX | #4193CF |
| RGB | rgb(65, 147, 207) |
| HSL | hsl(205, 60%, 53%) |
| OKLCH | oklch(63.9% 0.12 243.5) |
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 #4193CF | 3.33:1 | AA large text | Lc -65.9 | Content text, not long reading |
| Black text on #4193CF | 6.29:1 | AA | Lc 43.6 | Non-text elements, placeholder text |
| #4193CF text on white | 3.33:1 | AA large text | Lc 60.5 | Content text, not long reading |
| #4193CF text on black | 6.29:1 | AA | Lc -41.2 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEE
oklch(88.5% 0.033 245.3)
-
Step 300
300
#A1C6E4
oklch(81% 0.058 243)
-
Step 400
400
#6BA7D7
oklch(70.6% 0.094 243.8)
-
Step 500
500 (this color)
#4193CF
oklch(63.9% 0.12 243.5)
-
Step 600
600
#117AB9
oklch(55.7% 0.13 243.2)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#085381
oklch(42.6% 0.101 243.7)
-
Step 900
900
#144568
oklch(37.6% 0.079 244.1)
-
Step 950
950
#0E293D
oklch(27.1% 0.05 243.6)
#4193CF 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) | #7894D2 | 0.056 |
| Deuteranopia (no green cones) | #6487CE | 0.043 |
| Tritanopia (no blue cones) | #00A2A8 | 0.087 |
| Achromatopsia (no color) | #8D8D8D | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4193CF
#4193CF
oklch(63.9% 0.12 243.5)
- #BE7A33
#BE7A33
oklch(63.8% 0.12 63.5)
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 #4193CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.038
- Faded Blue #658CBB ΔE 0.042
- Water Blue #0E87CC ΔE 0.046
- Cool Blue #4984B8 ΔE 0.048
- Chefchaouen Blue #4895EF ΔE 0.049
- Steel Blue #4682B4 ΔE 0.055
- Dusty Blue #5A86AD ΔE 0.056
- Off Blue #5684AE ΔE 0.057
Use #4193CF 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.