#39778E
Closest named color: Metallic Blue (#4F738E). oklch(53.8% 0.073 225), rgb(57, 119, 142).
Aa
White text reads best on this color (4.99:1).
About this color
#39778E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.073 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.024 away. White text reads best on it, at 4.99:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.20:1 |
| White text | 4.99:1 |
Values
| HEX | #39778E |
| RGB | rgb(57, 119, 142) |
| HSL | hsl(196, 43%, 39%) |
| OKLCH | oklch(53.8% 0.073 225) |
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 #39778E | 4.99:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #39778E | 4.20:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #39778E text on white | 4.99:1 | AA | Lc 74.4 | Content text, not long reading |
| #39778E text on black | 4.20:1 | AA large text | Lc -27.3 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CDDCE2
oklch(88.5% 0.018 223.6)
-
Step 300
300
#ABC6D1
oklch(81% 0.033 224.3)
-
Step 400
400
#7DA8B9
oklch(70.6% 0.053 224.3)
-
Step 500
500
#5B92A8
oklch(63% 0.067 225.4)
-
Step 600
600 (this color)
#39778E
oklch(53.8% 0.073 225)
-
Step 700
700
#30697E
oklch(49.2% 0.068 225)
-
Step 800
800
#295666
oklch(42.8% 0.056 223.7)
-
Step 900
900
#264753
oklch(37.8% 0.044 223.6)
-
Step 950
950
#172931
oklch(26.9% 0.028 227.9)
#39778E 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) | #6A758F | 0.056 |
| Deuteranopia (no green cones) | #5E6B8E | 0.051 |
| Tritanopia (no blue cones) | #007E7E | 0.047 |
| Achromatopsia (no color) | #6F6F6F | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39778E
#39778E
oklch(53.8% 0.073 225)
- #92604A
#92604A
oklch(53.8% 0.074 44.5)
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 #39778E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.024
- Ocean #017B92 ΔE 0.026
- Cerulean #457B9D ΔE 0.028
- Dull Blue #49759C ΔE 0.030
- Sea Blue #047495 ΔE 0.031
- Stormy Blue #507B9C ΔE 0.035
- Muted Blue #3B719F ΔE 0.037
- Deep Aqua #08787F ΔE 0.038
Use #39778E 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.