#4E739B
Closest named color: Dull Blue (#49759C). oklch(54.5% 0.076 251.2), rgb(78, 115, 155).
Aa
White text reads best on this color (4.94:1).
About this color
#4E739B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.076 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.007 away. White text reads best on it, at 4.94:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.24:1 |
| White text | 4.94:1 |
Values
| HEX | #4E739B |
| RGB | rgb(78, 115, 155) |
| HSL | hsl(211, 33%, 46%) |
| OKLCH | oklch(54.5% 0.076 251.2) |
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 #4E739B | 4.94:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #4E739B | 4.24:1 | AA large text | Lc 30.0 | Dividers and decoration only |
| #4E739B text on white | 4.94:1 | AA | Lc 74.1 | Content text, not long reading |
| #4E739B text on black | 4.24:1 | AA large text | Lc -27.6 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D0DAE6
oklch(88.4% 0.02 252.9)
-
Step 300
300
#B1C3D6
oklch(81% 0.033 249.7)
-
Step 400
400
#88A4C2
oklch(70.8% 0.054 250.4)
-
Step 500
500
#6A8DB3
oklch(63.2% 0.07 251)
-
Step 600
600 (this color)
#4E739B
oklch(54.5% 0.076 251.2)
-
Step 700
700
#426388
oklch(49.1% 0.071 252.1)
-
Step 800
800
#36516E
oklch(42.6% 0.059 251)
-
Step 900
900
#2F4359
oklch(37.6% 0.046 251.4)
-
Step 950
950
#1C2734
oklch(26.9% 0.029 253)
#4E739B 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) | #63749D | 0.027 |
| Deuteranopia (no green cones) | #596D9A | 0.020 |
| Tritanopia (no blue cones) | #2B7C81 | 0.065 |
| Achromatopsia (no color) | #707070 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E739B
#4E739B
oklch(54.5% 0.076 251.2)
- #8C683C
#8C683C
oklch(54.4% 0.076 70.6)
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 #4E739B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.007
- Metallic Blue #4F738E ΔE 0.021
- Muted Blue #3B719F ΔE 0.022
- Cerulean #457B9D ΔE 0.023
- Stormy Blue #507B9C ΔE 0.024
- Flat Blue #3C73A8 ΔE 0.026
- French Blue #436BAD ΔE 0.043
- Nice Blue #107AB0 ΔE 0.049
Use #4E739B 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.