#616C7F
Closest named color: Metallic Blue (#4F738E). oklch(52.9% 0.033 261.4), rgb(97, 108, 127).
Aa
White text reads best on this color (5.30:1).
About this color
#616C7F is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.033 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.032 away. White text reads best on it, at 5.30:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.95:1 |
| White text | 5.30:1 |
Values
| HEX | #616C7F |
| RGB | rgb(97, 108, 127) |
| HSL | hsl(218, 13%, 44%) |
| OKLCH | oklch(52.9% 0.033 261.4) |
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 #616C7F | 5.30:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #616C7F | 3.95:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #616C7F text on white | 5.30:1 | AA | Lc 76.4 | Fine for body text |
| #616C7F text on black | 3.95:1 | AA large text | Lc -25.4 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D6D9DF
oklch(88.5% 0.009 264.5)
-
Step 300
300
#BBC1CA
oklch(80.9% 0.014 258.4)
-
Step 400
400
#98A1B0
oklch(70.7% 0.024 260.7)
-
Step 500
500
#7F8A9C
oklch(63.1% 0.03 260.3)
-
Step 600
600 (this color)
#616C7F
oklch(52.9% 0.033 261.4)
-
Step 700
700
#576172
oklch(49% 0.03 261.1)
-
Step 800
800
#474F5D
oklch(42.6% 0.025 261.7)
-
Step 900
900
#3C424C
oklch(37.7% 0.019 260.7)
-
Step 950
950
#23272D
oklch(27.1% 0.013 258.4)
#616C7F 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) | #666D80 | 0.008 |
| Deuteranopia (no green cones) | #636A7F | 0.006 |
| Tritanopia (no blue cones) | #597072 | 0.030 |
| Achromatopsia (no color) | #6B6B6B | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616C7F
#616C7F
oklch(52.9% 0.033 261.4)
- #756A56
#756A56
oklch(52.9% 0.033 82.5)
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 #616C7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.032
- Battleship Gray #6C757D ΔE 0.034
- Dim Gray #696969 ΔE 0.034
- Slate #516572 ΔE 0.036
- Battleship Grey #6B7C85 ΔE 0.050
- Grey Blue #647D8E ΔE 0.050
- Dull Blue #49759C ΔE 0.051
- Stormy Blue #507B9C ΔE 0.054
Use #616C7F 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.