#4B81AE
Closest named color: Steel Blue (#4682B4). oklch(58.5% 0.09 245.3), rgb(75, 129, 174).
Aa
Black text reads best on this color (5.05:1).
About this color
#4B81AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.090 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.010 away. Black text reads best on it, at 5.05:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 5.05:1 |
| White text | 4.15:1 |
Values
| HEX | #4B81AE |
| RGB | rgb(75, 129, 174) |
| HSL | hsl(207, 40%, 49%) |
| OKLCH | oklch(58.5% 0.09 245.3) |
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 #4B81AE | 4.15:1 | AA large text | Lc -74.0 | Content text, not long reading |
| Black text on #4B81AE | 5.05:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #4B81AE text on white | 4.15:1 | AA large text | Lc 68.5 | Content text, not long reading |
| #4B81AE text on black | 5.05:1 | AA | Lc -33.2 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#ACC4DA
oklch(80.9% 0.041 246)
-
Step 400
400
#7FA5C7
oklch(70.6% 0.065 245.9)
-
Step 500
500
#5D8FB9
oklch(63.2% 0.083 245)
-
Step 600
600 (this color)
#4B81AE
oklch(58.5% 0.09 245.3)
-
Step 700
700
#34658D
oklch(49.1% 0.084 245.3)
-
Step 800
800
#2C5373
oklch(42.8% 0.069 245.2)
-
Step 900
900
#28445D
oklch(37.6% 0.055 246.8)
-
Step 950
950
#182836
oklch(27% 0.034 245.9)
#4B81AE 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) | #6E82B0 | 0.041 |
| Deuteranopia (no green cones) | #6178AD | 0.033 |
| Tritanopia (no blue cones) | #008C90 | 0.076 |
| Achromatopsia (no color) | #7C7C7C | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B81AE
#4B81AE
oklch(58.5% 0.09 245.3)
- #A0703E
#A0703E
oklch(58.4% 0.09 65.6)
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 #4B81AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.010
- Off Blue #5684AE ΔE 0.015
- Cool Blue #4984B8 ΔE 0.016
- Dusty Blue #5A86AD ΔE 0.023
- Stormy Blue #507B9C ΔE 0.029
- Cerulean #457B9D ΔE 0.030
- Blue NCS #118AB2 ΔE 0.038
- Dull Blue #49759C ΔE 0.040
Use #4B81AE 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.