#3E778B
Closest named color: Metallic Blue (#4F738E). oklch(53.9% 0.067 223.2), rgb(62, 119, 139).
Aa
White text reads best on this color (4.98:1).
About this color
#3E778B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.067 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.022 away. White text reads best on it, at 4.98:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.21:1 |
| White text | 4.98:1 |
Values
| HEX | #3E778B |
| RGB | rgb(62, 119, 139) |
| HSL | hsl(196, 38%, 39%) |
| OKLCH | oklch(53.9% 0.067 223.2) |
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 #3E778B | 4.98:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #3E778B | 4.21:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #3E778B text on white | 4.98:1 | AA | Lc 74.3 | Content text, not long reading |
| #3E778B text on black | 4.21:1 | AA large text | Lc -27.4 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CEDCE1
oklch(88.5% 0.017 221.1)
-
Step 300
300
#ACC5CF
oklch(80.8% 0.031 223.9)
-
Step 400
400
#80A8B7
oklch(70.8% 0.049 222.9)
-
Step 500
500
#5E92A5
oklch(63.1% 0.062 223.1)
-
Step 600
600 (this color)
#3E778B
oklch(53.9% 0.067 223.2)
-
Step 700
700
#34697B
oklch(49.2% 0.063 222.6)
-
Step 800
800
#2C5564
oklch(42.6% 0.052 224)
-
Step 900
900
#284651
oklch(37.5% 0.04 223.5)
-
Step 950
950
#182930
oklch(26.9% 0.026 225.8)
#3E778B 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) | #6C748C | 0.055 |
| Deuteranopia (no green cones) | #606C8B | 0.048 |
| Tritanopia (no blue cones) | #017D7D | 0.045 |
| Achromatopsia (no color) | #707070 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E778B
#3E778B
oklch(53.9% 0.067 223.2)
- #90614E
#90614E
oklch(53.8% 0.068 42.8)
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 #3E778B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.022
- Ocean #017B92 ΔE 0.030
- Cerulean #457B9D ΔE 0.030
- Dull Blue #49759C ΔE 0.032
- Stormy Blue #507B9C ΔE 0.035
- Sea Blue #047495 ΔE 0.037
- Deep Aqua #08787F ΔE 0.038
- Muted Blue #3B719F ΔE 0.041
Use #3E778B 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.