#4B677B
Closest named color: Slate (#516572). oklch(50% 0.046 239.9), rgb(75, 103, 123).
Aa
White text reads best on this color (5.95:1).
About this color
#4B677B is a medium-dark, muted blue. In OKLCH its lightness is 50%, its chroma 0.046 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.015 away. White text reads best on it, at 5.95:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.52:1 |
| White text | 5.95:1 |
Values
| HEX | #4B677B |
| RGB | rgb(75, 103, 123) |
| HSL | hsl(205, 24%, 39%) |
| OKLCH | oklch(50% 0.046 239.9) |
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 #4B677B | 5.95:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #4B677B | 3.52:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #4B677B text on white | 5.95:1 | AA | Lc 79.7 | Fine for body text |
| #4B677B text on black | 3.52:1 | AA large text | Lc -22.1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE1
oklch(88.4% 0.013 244.3)
-
Step 300
300
#B4C3CE
oklch(80.9% 0.023 239.5)
-
Step 400
400
#8DA4B5
oklch(70.7% 0.036 240.1)
-
Step 500
500
#718EA3
oklch(63.2% 0.046 239.9)
-
Step 600
600
#59788E
oklch(55.7% 0.049 239.7)
-
Step 700
700 (this color)
#4B677B
oklch(50% 0.046 239.9)
-
Step 800
800
#3C5262
oklch(42.7% 0.038 240.3)
-
Step 900
900
#334450
oklch(37.7% 0.03 239.3)
-
Step 950
950
#1E282F
oklch(27% 0.019 238.9)
#4B677B 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) | #5E677C | 0.026 |
| Deuteranopia (no green cones) | #58617B | 0.024 |
| Tritanopia (no blue cones) | #3A6C6D | 0.037 |
| Achromatopsia (no color) | #646464 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B677B
#4B677B
oklch(50% 0.046 239.9)
- #775D49
#775D49
oklch(49.9% 0.046 59)
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 #4B677B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.015
- Denim #3B638C ΔE 0.038
- Metallic Blue #4F738E ΔE 0.042
- YInMn Blue #415A77 ΔE 0.043
- Dusty Grape #545775 ΔE 0.047
- Dim Gray #696969 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.053
- Muted Blue #3B719F ΔE 0.058
Use #4B677B 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.