#616C8A
Closest named color: Metallic Blue (#4F738E). oklch(53.4% 0.049 269), rgb(97, 108, 138).
Aa
White text reads best on this color (5.22:1).
About this color
#616C8A is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.049 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.028 away. White text reads best on it, at 5.22:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.02:1 |
| White text | 5.22:1 |
Values
| HEX | #616C8A |
| RGB | rgb(97, 108, 138) |
| HSL | hsl(224, 17%, 46%) |
| OKLCH | oklch(53.4% 0.049 269) |
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 #616C8A | 5.22:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #616C8A | 4.02:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #616C8A text on white | 5.22:1 | AA | Lc 75.9 | Fine for body text |
| #616C8A text on black | 4.02:1 | AA large text | Lc -25.8 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D6D9E1
oklch(88.5% 0.011 269.5)
-
Step 300
300
#BBC0CF
oklch(80.8% 0.022 271.1)
-
Step 400
400
#97A0B7
oklch(70.6% 0.035 268.5)
-
Step 500
500
#7E89A6
oklch(63.1% 0.046 268.8)
-
Step 600
600 (this color)
#616C8A
oklch(53.4% 0.049 269)
-
Step 700
700
#56607B
oklch(49.1% 0.045 268.9)
-
Step 800
800
#464E64
oklch(42.6% 0.038 269.2)
-
Step 900
900
#3B4152
oklch(37.7% 0.03 269.7)
-
Step 950
950
#232630
oklch(27% 0.019 272)
#616C8A 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) | #636E8B | 0.007 |
| Deuteranopia (no green cones) | #5F6B89 | 0.004 |
| Tritanopia (no blue cones) | #567276 | 0.045 |
| Achromatopsia (no color) | #6C6C6C | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616C8A
#616C8A
oklch(53.4% 0.049 269)
- #786C4C
#786C4C
oklch(53.4% 0.049 89.9)
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 #616C8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.028
- Dull Blue #49759C ΔE 0.040
- Battleship Gray #6C757D ΔE 0.042
- Stormy Blue #507B9C ΔE 0.046
- Slate #516572 ΔE 0.047
- Grey Blue #647D8E ΔE 0.050
- Dim Gray #696969 ΔE 0.051
- Muted Blue #3B719F ΔE 0.051
Use #616C8A 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.