#4093E1
Closest named color: Dark Sky Blue (#448EE4). oklch(64.8% 0.142 249.8), rgb(64, 147, 225).
Aa
Black text reads best on this color (6.47:1).
About this color
#4093E1 is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.142 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.015 away. Black text reads best on it, at 6.47:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.47:1 |
| White text | 3.24:1 |
Values
| HEX | #4093E1 |
| RGB | rgb(64, 147, 225) |
| HSL | hsl(209, 73%, 57%) |
| OKLCH | oklch(64.8% 0.142 249.8) |
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 #4093E1 | 3.24:1 | AA large text | Lc -64.8 | Content text, not long reading |
| Black text on #4093E1 | 6.47:1 | AA | Lc 44.7 | Non-text elements, placeholder text |
| #4093E1 text on white | 3.24:1 | AA large text | Lc 59.4 | Large or bold text, headings |
| #4093E1 text on black | 6.47:1 | AA | Lc -42.4 | 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
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DCF2
oklch(88.6% 0.038 249.5)
-
Step 300
300
#9FC5EC
oklch(80.9% 0.069 249.4)
-
Step 400
400
#68A5E3
oklch(70.6% 0.111 250)
-
Step 500
500 (this color)
#4093E1
oklch(64.8% 0.142 249.8)
-
Step 600
600
#0776C9
oklch(55.6% 0.154 249.8)
-
Step 700
700
#0063AB
oklch(49.2% 0.138 249.7)
-
Step 800
800
#02518D
oklch(42.8% 0.119 249.8)
-
Step 900
900
#114470
oklch(37.8% 0.092 249.2)
-
Step 950
950
#0C2842
oklch(27.1% 0.059 249.5)
#4093E1 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) | #7097E4 | 0.048 |
| Deuteranopia (no green cones) | #5888DF | 0.033 |
| Tritanopia (no blue cones) | #00A5AF | 0.106 |
| Achromatopsia (no color) | #8F8F8F | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4093E1
#4093E1
oklch(64.8% 0.142 249.8)
- #C47D00
#C47D00
oklch(64.9% 0.14 70.2)
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 #4093E1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.015
- Chefchaouen Blue #4895EF ΔE 0.023
- Cornflower Blue #6495ED ΔE 0.039
- Soft Blue #6488EA ΔE 0.045
- Dodger Blue #1E90FF ΔE 0.049
- Water Blue #0E87CC ΔE 0.053
- Faded Blue #658CBB ΔE 0.062
- Cool Blue #4984B8 ΔE 0.067
Use #4093E1 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.