#6F758E
Closest named color: Grey Blue (#647D8E). oklch(56.6% 0.039 274.5), rgb(111, 117, 142).
Aa
Black text reads best on this color (4.61:1).
About this color
#6F758E is a medium-dark, muted blue. In OKLCH its lightness is 57%, its chroma 0.039 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.026 away. Black text reads best on it, at 4.61:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.61:1 |
| White text | 4.55:1 |
Values
| HEX | #6F758E |
| RGB | rgb(111, 117, 142) |
| HSL | hsl(228, 12%, 50%) |
| OKLCH | oklch(56.6% 0.039 274.5) |
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 #6F758E | 4.55:1 | AA | Lc -77.1 | Fine for body text |
| Black text on #6F758E | 4.61:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #6F758E text on white | 4.55:1 | AA | Lc 71.6 | Content text, not long reading |
| #6F758E text on black | 4.61:1 | AA | Lc -30.0 | Non-text elements, placeholder text |
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
#E9EAED
oklch(93.7% 0.004 271.4)
-
Step 200
200
#D7D9E0
oklch(88.6% 0.01 273.3)
-
Step 300
300
#BDC0CC
oklch(80.9% 0.017 274.8)
-
Step 400
400
#9BA0B3
oklch(70.8% 0.028 273.9)
-
Step 500
500
#8288A0
oklch(63% 0.037 274.2)
-
Step 600
600 (this color)
#6F758E
oklch(56.6% 0.039 274.5)
-
Step 700
700
#5A5F76
oklch(49% 0.037 275.3)
-
Step 800
800
#4A4E60
oklch(42.7% 0.03 275.2)
-
Step 900
900
#3E414E
oklch(37.8% 0.023 275)
-
Step 950
950
#24262E
oklch(27% 0.015 274.3)
#6F758E 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) | #6E778F | 0.006 |
| Deuteranopia (no green cones) | #6C758D | 0.005 |
| Tritanopia (no blue cones) | #687A7D | 0.036 |
| Achromatopsia (no color) | #767676 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6F758E
#6F758E
oklch(56.6% 0.039 274.5)
- #7E765C
#7E765C
oklch(56.6% 0.039 93)
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 #6F758E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.026
- Battleship Gray #6C757D ΔE 0.028
- Battleship Grey #6B7C85 ΔE 0.029
- Slate Gray #708090 ΔE 0.032
- Grey Purple #826D8C ΔE 0.034
- Purple Grey #866F85 ΔE 0.037
- Lavender Gray #7E7F9A ΔE 0.039
- Steel Grey #6F828A ΔE 0.041
Use #6F758E 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.