#6B7A8F
Closest named color: Grey Blue (#647D8E). oklch(57.5% 0.037 256.8), rgb(107, 122, 143).
Aa
Black text reads best on this color (4.80:1).
About this color
#6B7A8F is a medium-dark, muted blue. In OKLCH its lightness is 57%, its chroma 0.037 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.013 away. Black text reads best on it, at 4.80:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.80:1 |
| White text | 4.36:1 |
Values
| HEX | #6B7A8F |
| RGB | rgb(107, 122, 143) |
| HSL | hsl(215, 14%, 49%) |
| OKLCH | oklch(57.5% 0.037 256.8) |
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 #6B7A8F | 4.36:1 | AA large text | Lc -75.8 | Fine for body text |
| Black text on #6B7A8F | 4.80:1 | AA | Lc 33.8 | Non-text elements, placeholder text |
| #6B7A8F text on white | 4.36:1 | AA large text | Lc 70.3 | Content text, not long reading |
| #6B7A8F text on black | 4.80:1 | AA | Lc -31.4 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D5D9DF
oklch(88.4% 0.009 258.3)
-
Step 300
300
#BAC1CC
oklch(80.9% 0.017 259.4)
-
Step 400
400
#96A2B2
oklch(70.8% 0.027 255.6)
-
Step 500
500
#7D8B9E
oklch(63.2% 0.033 256.1)
-
Step 600
600 (this color)
#6B7A8F
oklch(57.5% 0.037 256.8)
-
Step 700
700
#546275
oklch(49.2% 0.035 256.1)
-
Step 800
800
#45505F
oklch(42.7% 0.029 256.2)
-
Step 900
900
#3A424E
oklch(37.7% 0.023 258.4)
-
Step 950
950
#22272D
oklch(27% 0.013 253)
#6B7A8F 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) | #737B90 | 0.012 |
| Deuteranopia (no green cones) | #6F778F | 0.010 |
| Tritanopia (no blue cones) | #617E81 | 0.032 |
| Achromatopsia (no color) | #797979 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B7A8F
#6B7A8F
oklch(57.5% 0.037 256.8)
- #857661
#857661
oklch(57.4% 0.036 76.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #6B7A8F
These curated palettes and gradients contain exactly #6B7A8F. Open one to see the full color scheme around it.
Palettes
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.013
- Battleship Grey #6B7C85 ΔE 0.019
- Slate Gray #708090 ΔE 0.019
- Battleship Gray #6C757D ΔE 0.027
- Steel Grey #6F828A ΔE 0.028
- Steel #738595 ΔE 0.034
- Lavender Gray #7E7F9A ΔE 0.035
- Stormy Blue #507B9C ΔE 0.037
Use #6B7A8F 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.