#4084E5
Closest named color: Dark Sky Blue (#448EE4). oklch(61.8% 0.162 257.7), rgb(64, 132, 229).
Aa
Black text reads best on this color (5.64:1).
About this color
#4084E5 is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.162 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.028 away. Black text reads best on it, at 5.64:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.64:1 |
| White text | 3.71:1 |
Values
| HEX | #4084E5 |
| RGB | rgb(64, 132, 229) |
| HSL | hsl(215, 76%, 57%) |
| OKLCH | oklch(61.8% 0.162 257.7) |
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 #4084E5 | 3.71:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #4084E5 | 5.64:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #4084E5 text on white | 3.71:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #4084E5 text on black | 5.64:1 | AA | Lc -37.3 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C7DBF7
oklch(88.5% 0.044 256.8)
-
Step 300
300
#A1C3F4
oklch(81% 0.079 257.5)
-
Step 400
400
#6DA2EF
oklch(70.8% 0.127 257.7)
-
Step 500
500 (this color)
#4084E5
oklch(61.8% 0.162 257.7)
-
Step 600
600
#226FD8
oklch(55.5% 0.177 257.8)
-
Step 700
700
#145DBB
oklch(49.2% 0.163 257.5)
-
Step 800
800
#154C97
oklch(42.7% 0.135 257.8)
-
Step 900
900
#184078
oklch(37.6% 0.106 257.6)
-
Step 950
950
#0F2647
oklch(27% 0.068 257.7)
#4084E5 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) | #558DE9 | 0.033 |
| Deuteranopia (no green cones) | #377DE3 | 0.021 |
| Tritanopia (no blue cones) | #009BA9 | 0.128 |
| Achromatopsia (no color) | #848484 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4084E5
#4084E5
oklch(61.8% 0.162 257.7)
- #B07A00
#B07A00
oklch(61.9% 0.129 77.7)
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 #4084E5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.028
- Soft Blue #6488EA ΔE 0.039
- Dodger Blue #1E90FF ΔE 0.046
- Chefchaouen Blue #4895EF ΔE 0.047
- Water Blue #0E87CC ΔE 0.049
- Clear Blue #247AFD ΔE 0.051
- Cornflower #6A79F7 ΔE 0.058
- Cornflower Blue #6495ED ΔE 0.061
Use #4084E5 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.