#4F6C8B
Closest named color: Metallic Blue (#4F738E). oklch(52.1% 0.06 250.7), rgb(79, 108, 139).
Aa
White text reads best on this color (5.45:1).
About this color
#4F6C8B is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.060 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.020 away. White text reads best on it, at 5.45:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.85:1 |
| White text | 5.45:1 |
Values
| HEX | #4F6C8B |
| RGB | rgb(79, 108, 139) |
| HSL | hsl(211, 28%, 43%) |
| OKLCH | oklch(52.1% 0.06 250.7) |
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 #4F6C8B | 5.45:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #4F6C8B | 3.85:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #4F6C8B text on white | 5.45:1 | AA | Lc 77.2 | Fine for body text |
| #4F6C8B text on black | 3.85:1 | AA large text | Lc -24.6 | 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
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D2DAE4
oklch(88.5% 0.016 253.9)
-
Step 300
300
#B3C2D3
oklch(80.8% 0.029 251.5)
-
Step 400
400
#8CA3BD
oklch(70.7% 0.046 251.6)
-
Step 500
500
#6F8CAD
oklch(63% 0.06 252)
-
Step 600
600
#577698
oklch(55.6% 0.064 251.3)
-
Step 700
700 (this color)
#4F6C8B
oklch(52.1% 0.06 250.7)
-
Step 800
800
#3A5169
oklch(42.6% 0.049 250.1)
-
Step 900
900
#324356
oklch(37.7% 0.039 251.6)
-
Step 950
950
#1D2732
oklch(26.8% 0.025 251.2)
#4F6C8B 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) | #606D8C | 0.023 |
| Deuteranopia (no green cones) | #59678A | 0.018 |
| Tritanopia (no blue cones) | #397376 | 0.052 |
| Achromatopsia (no color) | #696969 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F6C8B
#4F6C8B
oklch(52.1% 0.06 250.7)
- #7F6342
#7F6342
oklch(52% 0.06 70.5)
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 #4F6C8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.020
- Dull Blue #49759C ΔE 0.032
- Muted Blue #3B719F ΔE 0.035
- Denim #3B638C ΔE 0.038
- Slate #516572 ΔE 0.040
- Cerulean #457B9D ΔE 0.045
- Stormy Blue #507B9C ΔE 0.046
- Dusky Blue #475F94 ΔE 0.047
Use #4F6C8B 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.