#4585AB
Closest named color: Off Blue (#5684AE). oklch(59% 0.088 236.9), rgb(69, 133, 171).
Aa
Black text reads best on this color (5.19:1).
About this color
#4585AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.088 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.018 away. Black text reads best on it, at 5.19:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.19:1 |
| White text | 4.04:1 |
Values
| HEX | #4585AB |
| RGB | rgb(69, 133, 171) |
| HSL | hsl(202, 43%, 47%) |
| OKLCH | oklch(59% 0.088 236.9) |
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 #4585AB | 4.04:1 | AA large text | Lc -73.0 | Content text, not long reading |
| Black text on #4585AB | 5.19:1 | AA | Lc 36.6 | Non-text elements, placeholder text |
| #4585AB text on white | 4.04:1 | AA large text | Lc 67.5 | Content text, not long reading |
| #4585AB text on black | 5.19:1 | AA | Lc -34.2 | 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 600.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#A9C5D7
oklch(80.8% 0.04 236.2)
-
Step 400
400
#7BA7C3
oklch(70.7% 0.063 236.7)
-
Step 500
500
#5791B4
oklch(63.1% 0.081 236.5)
-
Step 600
600 (this color)
#4585AB
oklch(59% 0.088 236.9)
-
Step 700
700
#2C6789
oklch(49% 0.082 237.1)
-
Step 800
800
#26546F
oklch(42.6% 0.067 237.1)
-
Step 900
900
#24465A
oklch(37.8% 0.052 236.3)
-
Step 950
950
#162935
oklch(27.1% 0.033 237.5)
#4585AB 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) | #7384AD | 0.052 |
| Deuteranopia (no green cones) | #657AAA | 0.043 |
| Tritanopia (no blue cones) | #008F92 | 0.065 |
| Achromatopsia (no color) | #7E7E7E | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4585AB
#4585AB
oklch(59% 0.088 236.9)
- #A56F47
#A56F47
oklch(58.9% 0.088 56.6)
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 #4585AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.018
- Steel Blue #4682B4 ΔE 0.019
- Dusty Blue #5A86AD ΔE 0.022
- Cool Blue #4984B8 ΔE 0.022
- Blue NCS #118AB2 ΔE 0.029
- Stormy Blue #507B9C ΔE 0.032
- Cerulean #457B9D ΔE 0.032
- Teal Blue #01889F ΔE 0.041
Use #4585AB 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.