#3E718B
Closest named color: Metallic Blue (#4F738E). oklch(52.4% 0.068 232.3), rgb(62, 113, 139).
Aa
White text reads best on this color (5.33:1).
About this color
#3E718B is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.068 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.021 away. White text reads best on it, at 5.33:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.93:1 |
| White text | 5.33:1 |
Values
| HEX | #3E718B |
| RGB | rgb(62, 113, 139) |
| HSL | hsl(200, 38%, 39%) |
| OKLCH | oklch(52.4% 0.068 232.3) |
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 #3E718B | 5.33:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #3E718B | 3.93:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #3E718B text on white | 5.33:1 | AA | Lc 76.4 | Fine for body text |
| #3E718B text on black | 3.93:1 | AA large text | Lc -25.3 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AEC5D1
oklch(81% 0.03 230.4)
-
Step 400
400
#82A7BA
oklch(70.8% 0.049 230.6)
-
Step 500
500
#6291A9
oklch(63.2% 0.062 231.2)
-
Step 600
600 (this color)
#3E718B
oklch(52.4% 0.068 232.3)
-
Step 700
700
#39677F
oklch(49.1% 0.064 232.9)
-
Step 800
800
#2F5467
oklch(42.6% 0.053 232.2)
-
Step 900
900
#2A4654
oklch(37.8% 0.041 231)
-
Step 950
950
#192931
oklch(27% 0.026 230.6)
#3E718B 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) | #64708C | 0.046 |
| Deuteranopia (no green cones) | #59678B | 0.041 |
| Tritanopia (no blue cones) | #057879 | 0.052 |
| Achromatopsia (no color) | #6B6B6B | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E718B
#3E718B
oklch(52.4% 0.068 232.3)
- #8A5F44
#8A5F44
oklch(52.5% 0.069 52.8)
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 #3E718B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.021
- Dull Blue #49759C ΔE 0.031
- Sea Blue #047495 ΔE 0.032
- Muted Blue #3B719F ΔE 0.032
- Ocean #017B92 ΔE 0.037
- Cerulean #457B9D ΔE 0.038
- Ocean Blue #03719C ΔE 0.040
- Stormy Blue #507B9C ΔE 0.043
Use #3E718B 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.