#4E83B8
Closest named color: Cool Blue (#4984B8). oklch(59.6% 0.099 249.8), rgb(78, 131, 184).
Aa
Black text reads best on this color (5.26:1).
About this color
#4E83B8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.099 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.005 away. Black text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.26:1 |
| White text | 3.99:1 |
Values
| HEX | #4E83B8 |
| RGB | rgb(78, 131, 184) |
| HSL | hsl(210, 43%, 51%) |
| OKLCH | oklch(59.6% 0.099 249.8) |
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 #4E83B8 | 3.99:1 | AA large text | Lc -72.6 | Content text, not long reading |
| Black text on #4E83B8 | 5.26:1 | AA | Lc 37.0 | Non-text elements, placeholder text |
| #4E83B8 text on white | 3.99:1 | AA large text | Lc 67.1 | Content text, not long reading |
| #4E83B8 text on black | 5.26:1 | AA | Lc -34.6 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEB
oklch(88.5% 0.027 249.9)
-
Step 300
300
#A9C4DF
oklch(80.9% 0.048 248.4)
-
Step 400
400
#7BA5D0
oklch(70.8% 0.078 249.6)
-
Step 500
500 (this color)
#4E83B8
oklch(59.6% 0.099 249.8)
-
Step 600
600
#3D77B0
oklch(55.6% 0.108 250)
-
Step 700
700
#2E6497
oklch(49.1% 0.1 249.4)
-
Step 800
800
#27527B
oklch(42.8% 0.084 249.4)
-
Step 900
900
#254463
oklch(37.8% 0.065 249.9)
-
Step 950
950
#16283A
oklch(27.1% 0.041 249.6)
#4E83B8 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) | #6D85BA | 0.037 |
| Deuteranopia (no green cones) | #5F7BB7 | 0.027 |
| Tritanopia (no blue cones) | #008F96 | 0.083 |
| Achromatopsia (no color) | #7F7F7F | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E83B8
#4E83B8
oklch(59.6% 0.099 249.8)
- #A57436
#A57436
oklch(59.7% 0.1 70.1)
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 #4E83B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.005
- Steel Blue #4682B4 ΔE 0.011
- Off Blue #5684AE ΔE 0.018
- Dusty Blue #5A86AD ΔE 0.024
- Faded Blue #658CBB ΔE 0.038
- Blue NCS #118AB2 ΔE 0.042
- Windows Blue #3778BF ΔE 0.043
- Water Blue #0E87CC ΔE 0.044
Use #4E83B8 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.