#616B78
Closest named color: Dim Gray (#696969). oklch(52.4% 0.024 255), rgb(97, 107, 120).
Aa
White text reads best on this color (5.40:1).
About this color
#616B78 is a medium-dark close to neutral grey. In OKLCH its lightness is 52%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.024 away. White text reads best on it, at 5.40:1.
| Hue family | Neutrals |
| Lightness | medium-dark (52%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #616B78 |
| RGB | rgb(97, 107, 120) |
| HSL | hsl(214, 11%, 43%) |
| OKLCH | oklch(52.4% 0.024 255) |
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 #616B78 | 5.40:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #616B78 | 3.88:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #616B78 text on white | 5.40:1 | AA | Lc 77.0 | Fine for body text |
| #616B78 text on black | 3.88:1 | AA large text | Lc -24.8 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D6D9DD
oklch(88.4% 0.006 255.5)
-
Step 300
300
#BCC1C8
oklch(80.9% 0.011 256.7)
-
Step 400
400
#9AA1AB
oklch(70.7% 0.017 257.2)
-
Step 500
500
#818A97
oklch(63% 0.022 257.5)
-
Step 600
600 (this color)
#616B78
oklch(52.4% 0.024 255)
-
Step 700
700
#58626D
oklch(49.2% 0.022 250.8)
-
Step 800
800
#485059
oklch(42.7% 0.018 251.4)
-
Step 900
900
#3D4249
oklch(37.7% 0.014 256.8)
-
Step 950
950
#23272B
oklch(27% 0.009 248.2)
#616B78 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) | #676B79 | 0.009 |
| Deuteranopia (no green cones) | #646978 | 0.007 |
| Tritanopia (no blue cones) | #5B6E6F | 0.021 |
| Achromatopsia (no color) | #6A6A6A | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616B78
#616B78
oklch(52.4% 0.024 255)
- #72685B
#72685B
oklch(52.3% 0.024 74.4)
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 #616B78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.024
- Slate #516572 ΔE 0.031
- Battleship Gray #6C757D ΔE 0.035
- Metallic Blue #4F738E ΔE 0.039
- Battleship Grey #6B7C85 ΔE 0.053
- Grey Blue #647D8E ΔE 0.055
- Dull Blue #49759C ΔE 0.059
- Grey Purple #826D8C ΔE 0.062
Use #616B78 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.