#39647A
Closest named color: YInMn Blue (#415A77). oklch(48.1% 0.06 232.1), rgb(57, 100, 122).
Aa
White text reads best on this color (6.40:1).
About this color
#39647A is a medium-dark, muted blue. In OKLCH its lightness is 48%, its chroma 0.060 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.030 away. White text reads best on it, at 6.40:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.27:1 |
| White text | 6.40:1 |
Values
| HEX | #39647A |
| RGB | rgb(57, 100, 122) |
| HSL | hsl(200, 36%, 35%) |
| OKLCH | oklch(48.1% 0.06 232.1) |
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 #39647A | 6.40:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #39647A | 3.27:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #39647A text on white | 6.40:1 | AA | Lc 81.7 | Fine for body text |
| #39647A text on black | 3.27:1 | AA large text | Lc -20.2 | 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
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300
#AFC4D0
oklch(80.8% 0.029 232.8)
-
Step 400
400
#84A6B9
oklch(70.6% 0.047 232.8)
-
Step 500
500
#6590A7
oklch(63.1% 0.058 232.3)
-
Step 600
600
#4B7A93
oklch(55.6% 0.064 232.8)
-
Step 700
700 (this color)
#39647A
oklch(48.1% 0.06 232.1)
-
Step 800
800
#325466
oklch(42.8% 0.05 232.7)
-
Step 900
900
#2C4553
oklch(37.6% 0.039 233.8)
-
Step 950
950
#1A2930
oklch(27.1% 0.024 228.7)
#39647A 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) | #59637B | 0.040 |
| Deuteranopia (no green cones) | #505C7A | 0.035 |
| Tritanopia (no blue cones) | #146A6B | 0.045 |
| Achromatopsia (no color) | #5F5F5F | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39647A
#39647A
oklch(48.1% 0.06 232.1)
- #79543E
#79543E
oklch(48% 0.06 51.6)
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 #39647A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.030
- Denim #3B638C ΔE 0.031
- Slate #516572 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.045
- Dark Aqua #05696B ΔE 0.047
- Dusty Grape #545775 ΔE 0.047
- Peacock Blue #016795 ΔE 0.049
- Petrol #005F6A ΔE 0.049
Use #39647A 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.