#6B768C
Closest named color: Grey Blue (#647D8E). oklch(56.5% 0.037 264.2), rgb(107, 118, 140).
Aa
Black text reads best on this color (4.59:1).
About this color
#6B768C is a medium-dark, muted blue. In OKLCH its lightness is 56%, its chroma 0.037 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.021 away. Black text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.59:1 |
| White text | 4.56:1 |
Values
| HEX | #6B768C |
| RGB | rgb(107, 118, 140) |
| HSL | hsl(220, 13%, 48%) |
| OKLCH | oklch(56.5% 0.037 264.2) |
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 #6B768C | 4.56:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #6B768C | 4.59:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #6B768C text on white | 4.56:1 | AA | Lc 71.8 | Content text, not long reading |
| #6B768C text on black | 4.59:1 | AA | Lc -29.9 | 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
#BBC1CC
oklch(81% 0.017 262.7)
-
Step 400
400
#98A1B2
oklch(70.7% 0.027 263.3)
-
Step 500
500
#7F8A9F
oklch(63.2% 0.034 263.4)
-
Step 600
600 (this color)
#6B768C
oklch(56.5% 0.037 264.2)
-
Step 700
700
#576175
oklch(49.2% 0.034 264.2)
-
Step 800
800
#474F5F
oklch(42.7% 0.029 264.2)
-
Step 900
900
#3C424E
oklch(37.8% 0.022 264.3)
-
Step 950
950
#23262D
oklch(26.9% 0.014 267)
#6B768C 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) | #6F778D | 0.007 |
| Deuteranopia (no green cones) | #6C748B | 0.006 |
| Tritanopia (no blue cones) | #637A7D | 0.032 |
| Achromatopsia (no color) | #767676 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B768C
#6B768C
oklch(56.5% 0.037 264.2)
- #80745E
#80745E
oklch(56.4% 0.036 82.6)
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 #6B768C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.021
- Battleship Gray #6C757D ΔE 0.023
- Battleship Grey #6B7C85 ΔE 0.024
- Slate Gray #708090 ΔE 0.030
- Steel Grey #6F828A ΔE 0.038
- Metallic Blue #4F738E ΔE 0.039
- Stormy Blue #507B9C ΔE 0.039
- Grey Purple #826D8C ΔE 0.041
Use #6B768C 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.