#4585DF
Closest named color: Dark Sky Blue (#448EE4). oklch(61.8% 0.152 257.3), rgb(69, 133, 223).
Aa
Black text reads best on this color (5.67:1).
About this color
#4585DF is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.152 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.024 away. Black text reads best on it, at 5.67:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.67:1 |
| White text | 3.70:1 |
Values
| HEX | #4585DF |
| RGB | rgb(69, 133, 223) |
| HSL | hsl(215, 71%, 57%) |
| OKLCH | oklch(61.8% 0.152 257.3) |
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 #4585DF | 3.70:1 | AA large text | Lc -69.8 | Content text, not long reading |
| Black text on #4585DF | 5.67:1 | AA | Lc 39.8 | Non-text elements, placeholder text |
| #4585DF text on white | 3.70:1 | AA large text | Lc 64.3 | Content text, not long reading |
| #4585DF text on black | 5.67:1 | AA | Lc -37.4 | 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
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C8DBF5
oklch(88.5% 0.041 256.2)
-
Step 300
300
#A3C3F1
oklch(81% 0.074 257.4)
-
Step 400
400
#70A2EA
oklch(70.7% 0.119 257.5)
-
Step 500
500 (this color)
#4585DF
oklch(61.8% 0.152 257.3)
-
Step 600
600
#2971D1
oklch(55.6% 0.164 257.1)
-
Step 700
700
#1C5EB5
oklch(49.1% 0.153 257.3)
-
Step 800
800
#1A4D93
oklch(42.7% 0.127 257.5)
-
Step 900
900
#1B4175
oklch(37.7% 0.099 257.1)
-
Step 950
950
#112644
oklch(26.9% 0.062 257.5)
#4585DF 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) | #5B8DE3 | 0.033 |
| Deuteranopia (no green cones) | #437EDD | 0.019 |
| Tritanopia (no blue cones) | #009AA7 | 0.121 |
| Achromatopsia (no color) | #858585 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4585DF
#4585DF
oklch(61.8% 0.152 257.3)
- #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 #4585DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.024
- Soft Blue #6488EA ΔE 0.038
- Water Blue #0E87CC ΔE 0.043
- Chefchaouen Blue #4895EF ΔE 0.046
- Dodger Blue #1E90FF ΔE 0.053
- Cornflower Blue #6495ED ΔE 0.058
- Windows Blue #3778BF ΔE 0.059
- Cool Blue #4984B8 ΔE 0.060
Use #4585DF 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.