#39677D
Closest named color: Slate (#516572). oklch(49% 0.062 230.5), rgb(57, 103, 125).
Aa
White text reads best on this color (6.15:1).
About this color
#39677D is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.062 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.031 away. White text reads best on it, at 6.15:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.41:1 |
| White text | 6.15:1 |
Values
| HEX | #39677D |
| RGB | rgb(57, 103, 125) |
| HSL | hsl(199, 37%, 36%) |
| OKLCH | oklch(49% 0.062 230.5) |
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 #39677D | 6.15:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #39677D | 3.41:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #39677D text on white | 6.15:1 | AA | Lc 80.6 | Fine for body text |
| #39677D text on black | 3.41:1 | AA large text | Lc -21.2 | 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 700.
-
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
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300
#AEC5D1
oklch(81% 0.03 230.4)
-
Step 400
400
#83A7B9
oklch(70.8% 0.047 229.9)
-
Step 500
500
#6291A8
oklch(63.2% 0.061 230.1)
-
Step 600
600
#487B93
oklch(55.7% 0.066 229.9)
-
Step 700
700 (this color)
#39677D
oklch(49% 0.062 230.5)
-
Step 800
800
#305466
oklch(42.7% 0.051 231.4)
-
Step 900
900
#2B4653
oklch(37.8% 0.04 229.9)
-
Step 950
950
#192931
oklch(27% 0.026 230.6)
#39677D 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) | #5C667E | 0.043 |
| Deuteranopia (no green cones) | #525E7D | 0.038 |
| Tritanopia (no blue cones) | #0E6D6E | 0.045 |
| Achromatopsia (no color) | #616161 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39677D
#39677D
oklch(49% 0.062 230.5)
- #7D5640
#7D5640
oklch(49% 0.062 50.2)
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 #39677D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.031
- Denim #3B638C ΔE 0.031
- YInMn Blue #415A77 ΔE 0.038
- Dark Aqua #05696B ΔE 0.047
- Peacock Blue #016795 ΔE 0.047
- Sea Blue #047495 ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.050
- Metallic Blue #4F738E ΔE 0.050
Use #39677D 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.