#3E759B
Closest named color: Dull Blue (#49759C). oklch(54.1% 0.083 240.8), rgb(62, 117, 155).
Aa
White text reads best on this color (4.97:1).
About this color
#3E759B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.083 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.011 away. White text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.22:1 |
| White text | 4.97:1 |
Values
| HEX | #3E759B |
| RGB | rgb(62, 117, 155) |
| HSL | hsl(205, 43%, 43%) |
| OKLCH | oklch(54.1% 0.083 240.8) |
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 #3E759B | 4.97:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #3E759B | 4.22:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #3E759B text on white | 4.97:1 | AA | Lc 74.2 | Content text, not long reading |
| #3E759B text on black | 4.22:1 | AA large text | Lc -27.5 | 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
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE6
oklch(88.4% 0.021 241.4)
-
Step 300
300
#ACC4D7
oklch(80.8% 0.038 241.9)
-
Step 400
400
#7FA6C3
oklch(70.7% 0.06 240.9)
-
Step 500
500
#5D90B4
oklch(63.2% 0.077 240.3)
-
Step 600
600 (this color)
#3E759B
oklch(54.1% 0.083 240.8)
-
Step 700
700
#346689
oklch(49.1% 0.078 241.3)
-
Step 800
800
#2C536F
oklch(42.6% 0.064 241.6)
-
Step 900
900
#28455A
oklch(37.7% 0.05 241.3)
-
Step 950
950
#182835
oklch(26.9% 0.033 243.9)
#3E759B 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) | #64759D | 0.044 |
| Deuteranopia (no green cones) | #576C9A | 0.035 |
| Tritanopia (no blue cones) | #007E82 | 0.063 |
| Achromatopsia (no color) | #707070 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E759B
#3E759B
oklch(54.1% 0.083 240.8)
- #92633A
#92633A
oklch(54.1% 0.083 60.7)
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 #3E759B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.011
- Muted Blue #3B719F ΔE 0.015
- Cerulean #457B9D ΔE 0.020
- Flat Blue #3C73A8 ΔE 0.023
- Metallic Blue #4F738E ΔE 0.025
- Stormy Blue #507B9C ΔE 0.027
- Sea Blue #047495 ΔE 0.034
- Ocean Blue #03719C ΔE 0.036
Use #3E759B 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.