#4E739D
Closest named color: Dull Blue (#49759C). oklch(54.6% 0.078 252.4), rgb(78, 115, 157).
Aa
White text reads best on this color (4.92:1).
About this color
#4E739D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.078 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.008 away. White text reads best on it, at 4.92:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #4E739D |
| RGB | rgb(78, 115, 157) |
| HSL | hsl(212, 34%, 46%) |
| OKLCH | oklch(54.6% 0.078 252.4) |
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 #4E739D | 4.92:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #4E739D | 4.26:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #4E739D text on white | 4.92:1 | AA | Lc 74.0 | Content text, not long reading |
| #4E739D text on black | 4.26:1 | AA large text | Lc -27.7 | 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
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D0DAE6
oklch(88.4% 0.02 252.9)
-
Step 300
300
#B1C3D7
oklch(81% 0.035 251)
-
Step 400
400
#88A3C3
oklch(70.6% 0.056 252.9)
-
Step 500
500
#6A8CB4
oklch(63% 0.072 252.9)
-
Step 600
600 (this color)
#4E739D
oklch(54.6% 0.078 252.4)
-
Step 700
700
#416389
oklch(49.1% 0.073 252.1)
-
Step 800
800
#36516F
oklch(42.7% 0.06 251.8)
-
Step 900
900
#2F435A
oklch(37.6% 0.047 252.5)
-
Step 950
950
#1C2735
oklch(26.9% 0.03 254.7)
#4E739D 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) | #62759F | 0.027 |
| Deuteranopia (no green cones) | #586D9C | 0.019 |
| Tritanopia (no blue cones) | #297D81 | 0.070 |
| Achromatopsia (no color) | #707070 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E739D
#4E739D
oklch(54.6% 0.078 252.4)
- #8C693A
#8C693A
oklch(54.6% 0.078 73.1)
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 #4E739D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.008
- Muted Blue #3B719F ΔE 0.022
- Metallic Blue #4F738E ΔE 0.024
- Flat Blue #3C73A8 ΔE 0.024
- Cerulean #457B9D ΔE 0.024
- Stormy Blue #507B9C ΔE 0.025
- French Blue #436BAD ΔE 0.041
- Nice Blue #107AB0 ΔE 0.048
Use #4E739D 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.