#4E81A8
Closest named color: Off Blue (#5684AE). oklch(58.4% 0.082 242.8), rgb(78, 129, 168).
Aa
Black text reads best on this color (5.02:1).
About this color
#4E81A8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.082 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.015 away. Black text reads best on it, at 5.02:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.02:1 |
| White text | 4.17:1 |
Values
| HEX | #4E81A8 |
| RGB | rgb(78, 129, 168) |
| HSL | hsl(206, 37%, 48%) |
| OKLCH | oklch(58.4% 0.082 242.8) |
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 #4E81A8 | 4.17:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #4E81A8 | 5.02:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #4E81A8 text on white | 4.17:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #4E81A8 text on black | 5.02:1 | AA | Lc -33.0 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE6
oklch(88.5% 0.021 243.4)
-
Step 300
300
#ADC4D7
oklch(80.9% 0.037 243.1)
-
Step 400
400
#81A5C3
oklch(70.6% 0.059 243.9)
-
Step 500
500
#608FB4
oklch(63.1% 0.076 243.1)
-
Step 600
600 (this color)
#4E81A8
oklch(58.4% 0.082 242.8)
-
Step 700
700
#376588
oklch(49% 0.076 243.2)
-
Step 800
800
#2E536F
oklch(42.7% 0.063 242.8)
-
Step 900
900
#2A455A
oklch(37.8% 0.049 243)
-
Step 950
950
#192834
oklch(26.9% 0.03 243.3)
#4E81A8 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) | #7081AA | 0.041 |
| Deuteranopia (no green cones) | #6478A7 | 0.033 |
| Tritanopia (no blue cones) | #178A8E | 0.067 |
| Achromatopsia (no color) | #7C7C7C | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E81A8
#4E81A8
oklch(58.4% 0.082 242.8)
- #9E7046
#9E7046
oklch(58.3% 0.082 62.5)
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 #4E81A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.015
- Steel Blue #4682B4 ΔE 0.019
- Dusty Blue #5A86AD ΔE 0.021
- Stormy Blue #507B9C ΔE 0.022
- Cool Blue #4984B8 ΔE 0.024
- Cerulean #457B9D ΔE 0.025
- Dull Blue #49759C ΔE 0.037
- Blue NCS #118AB2 ΔE 0.040
Use #4E81A8 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.