#4584A5
Closest named color: Off Blue (#5684AE). oklch(58.5% 0.082 233.4), rgb(69, 132, 165).
Aa
Black text reads best on this color (5.09:1).
About this color
#4584A5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.082 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.023 away. Black text reads best on it, at 5.09:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.09:1 |
| White text | 4.12:1 |
Values
| HEX | #4584A5 |
| RGB | rgb(69, 132, 165) |
| HSL | hsl(201, 41%, 46%) |
| OKLCH | oklch(58.5% 0.082 233.4) |
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 #4584A5 | 4.12:1 | AA large text | Lc -73.7 | Content text, not long reading |
| Black text on #4584A5 | 5.09:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #4584A5 text on white | 4.12:1 | AA large text | Lc 68.2 | Content text, not long reading |
| #4584A5 text on black | 5.09:1 | AA | Lc -33.5 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CDDCE5
oklch(88.6% 0.02 233.9)
-
Step 300
300
#AAC5D5
oklch(80.8% 0.037 233.9)
-
Step 400
400
#7CA7C0
oklch(70.6% 0.059 234.2)
-
Step 500
500
#5991B0
oklch(63% 0.075 234)
-
Step 600
600 (this color)
#4584A5
oklch(58.5% 0.082 233.4)
-
Step 700
700
#2E6885
oklch(49.2% 0.076 233)
-
Step 800
800
#27556C
oklch(42.8% 0.063 232.6)
-
Step 900
900
#254658
oklch(37.7% 0.05 234)
-
Step 950
950
#162933
oklch(26.9% 0.031 232.5)
#4584A5 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) | #7483A7 | 0.054 |
| Deuteranopia (no green cones) | #6779A5 | 0.046 |
| Tritanopia (no blue cones) | #008D8F | 0.060 |
| Achromatopsia (no color) | #7D7D7D | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4584A5
#4584A5
oklch(58.5% 0.082 233.4)
- #A26E4C
#A26E4C
oklch(58.5% 0.082 53.6)
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 #4584A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.023
- Steel Blue #4682B4 ΔE 0.026
- Cerulean #457B9D ΔE 0.026
- Dusty Blue #5A86AD ΔE 0.026
- Stormy Blue #507B9C ΔE 0.026
- Cool Blue #4984B8 ΔE 0.031
- Blue NCS #118AB2 ΔE 0.032
- Teal Blue #01889F ΔE 0.036
Use #4584A5 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.