#616B8A
Closest named color: Metallic Blue (#4F738E). oklch(53.1% 0.05 270.7), rgb(97, 107, 138).
Aa
White text reads best on this color (5.27:1).
About this color
#616B8A is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.050 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.030 away. White text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.97:1 |
| White text | 5.27:1 |
Values
| HEX | #616B8A |
| RGB | rgb(97, 107, 138) |
| HSL | hsl(225, 17%, 46%) |
| OKLCH | oklch(53.1% 0.05 270.7) |
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 #616B8A | 5.27:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #616B8A | 3.97:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #616B8A text on white | 5.27:1 | AA | Lc 76.2 | Fine for body text |
| #616B8A text on black | 3.97:1 | AA large text | Lc -25.5 | 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
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D6D9E2
oklch(88.6% 0.013 271.3)
-
Step 300
300
#BBC0D0
oklch(80.9% 0.023 272)
-
Step 400
400
#98A0B8
oklch(70.7% 0.036 270.9)
-
Step 500
500
#7F88A6
oklch(63% 0.046 271.9)
-
Step 600
600 (this color)
#616B8A
oklch(53.1% 0.05 270.7)
-
Step 700
700
#56607C
oklch(49.2% 0.047 269.4)
-
Step 800
800
#474E65
oklch(42.7% 0.039 271.5)
-
Step 900
900
#3B4152
oklch(37.7% 0.03 269.7)
-
Step 950
950
#232630
oklch(27% 0.019 272)
#616B8A 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) | #626E8B | 0.009 |
| Deuteranopia (no green cones) | #5E6A89 | 0.006 |
| Tritanopia (no blue cones) | #567175 | 0.046 |
| Achromatopsia (no color) | #6C6C6C | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616B8A
#616B8A
oklch(53.1% 0.05 270.7)
- #776B4A
#776B4A
oklch(53% 0.05 90.4)
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 #616B8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.030
- Dull Blue #49759C ΔE 0.041
- Battleship Gray #6C757D ΔE 0.045
- Slate #516572 ΔE 0.047
- Stormy Blue #507B9C ΔE 0.049
- Muted Blue #3B719F ΔE 0.051
- Dim Gray #696969 ΔE 0.051
- Grey Purple #826D8C ΔE 0.052
Use #616B8A 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.