#3F627F
Closest named color: Denim (#3B638C). oklch(48.2% 0.062 244.6), rgb(63, 98, 127).
Aa
White text reads best on this color (6.43:1).
About this color
#3F627F is a medium-dark, muted blue. In OKLCH its lightness is 48%, its chroma 0.062 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.021 away. White text reads best on it, at 6.43:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.26:1 |
| White text | 6.43:1 |
Values
| HEX | #3F627F |
| RGB | rgb(63, 98, 127) |
| HSL | hsl(207, 34%, 37%) |
| OKLCH | oklch(48.2% 0.062 244.6) |
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 #3F627F | 6.43:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #3F627F | 3.26:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #3F627F text on white | 6.43:1 | AA | Lc 81.9 | Fine for body text |
| #3F627F text on black | 3.26:1 | AA large text | Lc -20.0 | 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
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#D0DBE4
oklch(88.6% 0.017 242.5)
-
Step 300
300
#B1C3D3
oklch(80.9% 0.03 245)
-
Step 400
400
#88A4BD
oklch(70.6% 0.048 245.5)
-
Step 500
500
#6A8EAC
oklch(63.1% 0.061 244.1)
-
Step 600
600
#517898
oklch(55.7% 0.067 244.1)
-
Step 700
700 (this color)
#3F627F
oklch(48.2% 0.062 244.6)
-
Step 800
800
#365269
oklch(42.6% 0.051 244.2)
-
Step 900
900
#2F4456
oklch(37.7% 0.041 245)
-
Step 950
950
#1C2832
oklch(27% 0.025 244)
#3F627F 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) | #566280 | 0.030 |
| Deuteranopia (no green cones) | #4D5C7E | 0.023 |
| Tritanopia (no blue cones) | #21696C | 0.051 |
| Achromatopsia (no color) | #5F5F5F | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F627F
#3F627F
oklch(48.2% 0.062 244.6)
- #775738
#775738
oklch(48.3% 0.062 64.6)
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 #3F627F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.021
- YInMn Blue #415A77 ΔE 0.024
- Slate #516572 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.038
- Dusty Grape #545775 ΔE 0.039
- Dusky Blue #475F94 ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.042
- Dusk #4E5481 ΔE 0.045
Use #3F627F 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.