#616B80
Closest named color: Metallic Blue (#4F738E). oklch(52.7% 0.035 265.1), rgb(97, 107, 128).
Aa
White text reads best on this color (5.35:1).
About this color
#616B80 is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.035 and its hue 265°. 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 5.35:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.92:1 |
| White text | 5.35:1 |
Values
| HEX | #616B80 |
| RGB | rgb(97, 107, 128) |
| HSL | hsl(221, 14%, 44%) |
| OKLCH | oklch(52.7% 0.035 265.1) |
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 #616B80 | 5.35:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #616B80 | 3.92:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #616B80 text on white | 5.35:1 | AA | Lc 76.7 | Fine for body text |
| #616B80 text on black | 3.92:1 | AA large text | Lc -25.1 | 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 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
#BCC1CB
oklch(81% 0.015 264.5)
-
Step 400
400
#99A1B1
oklch(70.8% 0.025 264.4)
-
Step 500
500
#808A9E
oklch(63.2% 0.032 264.3)
-
Step 600
600 (this color)
#616B80
oklch(52.7% 0.035 265.1)
-
Step 700
700
#586174
oklch(49.2% 0.032 265.2)
-
Step 800
800
#484F5E
oklch(42.7% 0.027 265.5)
-
Step 900
900
#3C424D
oklch(37.8% 0.02 262.6)
-
Step 950
950
#23262D
oklch(26.9% 0.014 267)
#616B80 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) | #646C81 | 0.006 |
| Deuteranopia (no green cones) | #626980 | 0.006 |
| Tritanopia (no blue cones) | #596F72 | 0.031 |
| Achromatopsia (no color) | #6B6B6B | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616B80
#616B80
oklch(52.7% 0.035 265.1)
- #746A54
#746A54
oklch(52.7% 0.035 86.4)
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 #616B80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.032
- Dim Gray #696969 ΔE 0.036
- Slate #516572 ΔE 0.036
- Battleship Gray #6C757D ΔE 0.037
- Dull Blue #49759C ΔE 0.050
- Grey Blue #647D8E ΔE 0.052
- Battleship Grey #6B7C85 ΔE 0.053
- Stormy Blue #507B9C ΔE 0.055
Use #616B80 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.