#4F718B
Closest named color: Metallic Blue (#4F738E). oklch(53.3% 0.057 242), rgb(79, 113, 139).
Aa
White text reads best on this color (5.16:1).
About this color
#4F718B is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.057 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.007 away. White text reads best on it, at 5.16:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.06:1 |
| White text | 5.16:1 |
Values
| HEX | #4F718B |
| RGB | rgb(79, 113, 139) |
| HSL | hsl(206, 28%, 43%) |
| OKLCH | oklch(53.3% 0.057 242) |
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 #4F718B | 5.16:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #4F718B | 4.06:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #4F718B text on white | 5.16:1 | AA | Lc 75.5 | Fine for body text |
| #4F718B text on black | 4.06:1 | AA large text | Lc -26.2 | 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 600.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D1DAE2
oklch(88.4% 0.015 244.7)
-
Step 300
300
#B3C3D0
oklch(80.9% 0.025 242.4)
-
Step 400
400
#8BA4B8
oklch(70.6% 0.041 242.4)
-
Step 500
500
#6E8EA7
oklch(63.2% 0.052 242.1)
-
Step 600
600 (this color)
#4F718B
oklch(53.3% 0.057 242)
-
Step 700
700
#46657C
oklch(49.2% 0.052 241.2)
-
Step 800
800
#395265
oklch(42.6% 0.044 241.8)
-
Step 900
900
#324452
oklch(37.7% 0.033 242.1)
-
Step 950
950
#1D2830
oklch(27% 0.021 240.1)
#4F718B 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) | #66718C | 0.030 |
| Deuteranopia (no green cones) | #5E6A8B | 0.027 |
| Tritanopia (no blue cones) | #38777A | 0.045 |
| Achromatopsia (no color) | #6D6D6D | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F718B
#4F718B
oklch(53.3% 0.057 242)
- #85664A
#85664A
oklch(53.4% 0.057 63.2)
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 #4F718B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.007
- Dull Blue #49759C ΔE 0.026
- Stormy Blue #507B9C ΔE 0.035
- Cerulean #457B9D ΔE 0.035
- Muted Blue #3B719F ΔE 0.037
- Slate #516572 ΔE 0.045
- Grey Blue #647D8E ΔE 0.047
- Battleship Gray #6C757D ΔE 0.047
Use #4F718B 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.