#3F628F
Closest named color: Denim (#3B638C). oklch(49% 0.083 255.2), rgb(63, 98, 143).
Aa
White text reads best on this color (6.25:1).
About this color
#3F628F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.083 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.008 away. White text reads best on it, at 6.25:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.35:1 |
| White text | 6.25:1 |
Values
| HEX | #3F628F |
| RGB | rgb(63, 98, 143) |
| HSL | hsl(214, 39%, 40%) |
| OKLCH | oklch(49% 0.083 255.2) |
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 #3F628F | 6.25:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #3F628F | 3.35:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #3F628F text on white | 6.25:1 | AA | Lc 81.1 | Fine for body text |
| #3F628F text on black | 3.35:1 | AA large text | Lc -20.8 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D0DAE8
oklch(88.5% 0.022 256.7)
-
Step 300
300
#B0C2DB
oklch(80.8% 0.041 256.6)
-
Step 400
400
#86A3C9
oklch(70.7% 0.065 255.3)
-
Step 500
500
#678CBB
oklch(63.1% 0.083 254.8)
-
Step 600
600
#4E75A7
oklch(55.5% 0.09 255.1)
-
Step 700
700 (this color)
#3F628F
oklch(49% 0.083 255.2)
-
Step 800
800
#345074
oklch(42.6% 0.069 255.2)
-
Step 900
900
#2E435E
oklch(37.8% 0.054 255.1)
-
Step 950
950
#1B2737
oklch(26.9% 0.034 255.8)
#3F628F 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) | #506591 | 0.024 |
| Deuteranopia (no green cones) | #465D8E | 0.016 |
| Tritanopia (no blue cones) | #0D6C72 | 0.073 |
| Achromatopsia (no color) | #606060 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F628F
#3F628F
oklch(49% 0.083 255.2)
- #7C5923
#7C5923
oklch(49% 0.084 75.1)
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 #3F628F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.008
- Dusky Blue #475F94 ΔE 0.016
- Denim Blue #3B5B92 ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.033
- Peacock Blue #016795 ΔE 0.038
- YInMn Blue #415A77 ΔE 0.041
- Dusk #4E5481 ΔE 0.043
- Muted Blue #3B719F ΔE 0.045
Use #3F628F 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.