#4B759F
Closest named color: Dull Blue (#49759C). oklch(55% 0.081 249.5), rgb(75, 117, 159).
Aa
White text reads best on this color (4.83:1).
About this color
#4B759F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.081 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.005 away. White text reads best on it, at 4.83:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.34:1 |
| White text | 4.83:1 |
Values
| HEX | #4B759F |
| RGB | rgb(75, 117, 159) |
| HSL | hsl(210, 36%, 46%) |
| OKLCH | oklch(55% 0.081 249.5) |
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 #4B759F | 4.83:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #4B759F | 4.34:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #4B759F text on white | 4.83:1 | AA | Lc 73.4 | Content text, not long reading |
| #4B759F text on black | 4.34:1 | AA large text | Lc -28.3 | Dividers and decoration only |
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
#E5EBF1
oklch(93.7% 0.01 247.9)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AFC3D8
oklch(80.9% 0.037 249.6)
-
Step 400
400
#85A4C4
oklch(70.7% 0.058 249.5)
-
Step 500
500
#668DB5
oklch(63% 0.075 249.7)
-
Step 600
600 (this color)
#4B759F
oklch(55% 0.081 249.5)
-
Step 700
700
#3E648A
oklch(49.2% 0.075 249.6)
-
Step 800
800
#335270
oklch(42.8% 0.062 248.7)
-
Step 900
900
#2D445B
oklch(37.8% 0.049 249.2)
-
Step 950
950
#1B2835
oklch(27.1% 0.03 249)
#4B759F 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) | #6476A1 | 0.031 |
| Deuteranopia (no green cones) | #596E9E | 0.024 |
| Tritanopia (no blue cones) | #1E7F83 | 0.071 |
| Achromatopsia (no color) | #727272 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B759F
#4B759F
oklch(55% 0.081 249.5)
- #90693A
#90693A
oklch(55% 0.081 69.9)
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 #4B759F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.005
- Cerulean #457B9D ΔE 0.019
- Stormy Blue #507B9C ΔE 0.021
- Muted Blue #3B719F ΔE 0.021
- Flat Blue #3C73A8 ΔE 0.022
- Metallic Blue #4F738E ΔE 0.026
- French Blue #436BAD ΔE 0.042
- Steel Blue #4682B4 ΔE 0.043
Use #4B759F 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.