#39479E
Closest named color: Blueberry (#464196). oklch(43.7% 0.141 272.3), rgb(57, 71, 158).
Aa
White text reads best on this color (8.17:1).
About this color
#39479E is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.141 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.025 away. White text reads best on it, at 8.17:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.56:1 |
| White text | 8.17:1 |
Values
| HEX | #39479E |
| RGB | rgb(57, 71, 158) |
| HSL | hsl(232, 47%, 42%) |
| OKLCH | oklch(43.7% 0.141 272.3) |
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 #39479E | 8.17:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #39479E | 2.56:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #39479E text on white | 8.17:1 | AAA | Lc 87.9 | Fine for body text |
| #39479E text on black | 2.56:1 | Fails | Lc -14.2 | Not readable |
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 800.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CED8F8
oklch(88.5% 0.045 271.7)
-
Step 300
300
#AEBEF7
oklch(80.9% 0.083 272.3)
-
Step 400
400
#859AF3
oklch(70.7% 0.132 272.5)
-
Step 500
500
#687EEE
oklch(63.1% 0.169 272.3)
-
Step 600
600
#5164DD
oklch(55.6% 0.185 272.2)
-
Step 700
700
#4352BF
oklch(49% 0.17 272.6)
-
Step 800
800 (this color)
#39479E
oklch(43.7% 0.141 272.3)
-
Step 900
900
#2F3A7B
oklch(37.6% 0.11 272.8)
-
Step 950
950
#1B2348
oklch(27% 0.069 271.9)
#39479E 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) | #0854A1 | 0.045 |
| Deuteranopia (no green cones) | #004B9C | 0.042 |
| Tritanopia (no blue cones) | #005C6B | 0.121 |
| Achromatopsia (no color) | #4F4F4F | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39479E
#39479E
oklch(43.7% 0.141 272.3)
- #634F00
#634F00
oklch(43.6% 0.089 92)
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 #39479E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.025
- Cobalt #1E488F ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.042
- Dusk Blue #26538D ΔE 0.049
- Sapphire #2138AB ΔE 0.054
- Twilight #4E518B ΔE 0.055
- Light Navy #155084 ΔE 0.062
- Denim Blue #3B5B92 ΔE 0.062
Use #39479E 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.