#4F617E
Closest named color: Slate (#516572). oklch(48.9% 0.052 259.8), rgb(79, 97, 126).
Aa
White text reads best on this color (6.28:1).
About this color
#4F617E is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.052 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.026 away. White text reads best on it, at 6.28:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #4F617E |
| RGB | rgb(79, 97, 126) |
| HSL | hsl(217, 23%, 40%) |
| OKLCH | oklch(48.9% 0.052 259.8) |
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 #4F617E | 6.28:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #4F617E | 3.34:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #4F617E text on white | 6.28:1 | AA | Lc 81.3 | Fine for body text |
| #4F617E text on black | 3.34:1 | AA large text | Lc -20.6 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D4D9E3
oklch(88.4% 0.015 264.5)
-
Step 300
300
#B7C1D1
oklch(80.8% 0.025 259.8)
-
Step 400
400
#92A2BA
oklch(70.8% 0.04 258.4)
-
Step 500
500
#778AA9
oklch(63% 0.052 260.1)
-
Step 600
600
#607494
oklch(55.5% 0.055 259.7)
-
Step 700
700 (this color)
#4F617E
oklch(48.9% 0.052 259.8)
-
Step 800
800
#415067
oklch(42.8% 0.043 258.8)
-
Step 900
900
#374254
oklch(37.7% 0.034 260.2)
-
Step 950
950
#202731
oklch(27% 0.021 257.3)
#4F617E 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) | #57637F | 0.013 |
| Deuteranopia (no green cones) | #525E7D | 0.009 |
| Tritanopia (no blue cones) | #40676B | 0.046 |
| Achromatopsia (no color) | #606060 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F617E
#4F617E
oklch(48.9% 0.052 259.8)
- #705D3E
#705D3E
oklch(48.9% 0.052 79.3)
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 #4F617E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.026
- Dusty Grape #545775 ΔE 0.029
- Denim #3B638C ΔE 0.030
- YInMn Blue #415A77 ΔE 0.031
- Dusky Blue #475F94 ΔE 0.039
- Dusk #4E5481 ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.050
Use #4F617E 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.