#6A7A8A
Closest named color: Grey Blue (#647D8E). oklch(57.2% 0.031 248.4), rgb(106, 122, 138).
Aa
Black text reads best on this color (4.76:1).
About this color
#6A7A8A is a medium-dark, muted blue. In OKLCH its lightness is 57%, its chroma 0.031 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.011 away. Black text reads best on it, at 4.76:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.76:1 |
| White text | 4.40:1 |
Values
| HEX | #6A7A8A |
| RGB | rgb(106, 122, 138) |
| HSL | hsl(210, 13%, 48%) |
| OKLCH | oklch(57.2% 0.031 248.4) |
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 #6A7A8A | 4.40:1 | AA large text | Lc -76.1 | Fine for body text |
| Black text on #6A7A8A | 4.76:1 | AA | Lc 33.5 | Non-text elements, placeholder text |
| #6A7A8A text on white | 4.40:1 | AA large text | Lc 70.6 | Content text, not long reading |
| #6A7A8A text on black | 4.76:1 | AA | Lc -31.1 | 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
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D5DADE
oklch(88.6% 0.008 241.7)
-
Step 300
300
#BAC2C9
oklch(81% 0.013 244.3)
-
Step 400
400
#96A2AE
oklch(70.7% 0.022 248.1)
-
Step 500
500
#7C8B9A
oklch(63% 0.029 248.3)
-
Step 600
600 (this color)
#6A7A8A
oklch(57.2% 0.031 248.4)
-
Step 700
700
#546271
oklch(49% 0.03 250.2)
-
Step 800
800
#45505C
oklch(42.6% 0.024 250.7)
-
Step 900
900
#3A434B
oklch(37.8% 0.018 245.1)
-
Step 950
950
#22272C
oklch(27% 0.012 248.3)
#6A7A8A 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) | #747A8B | 0.014 |
| Deuteranopia (no green cones) | #70778A | 0.011 |
| Tritanopia (no blue cones) | #617E7F | 0.027 |
| Achromatopsia (no color) | #787878 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6A7A8A
#6A7A8A
oklch(57.2% 0.031 248.4)
- #857565
#857565
oklch(57.3% 0.031 67.1)
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 #6A7A8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.011
- Battleship Grey #6B7C85 ΔE 0.011
- Slate Gray #708090 ΔE 0.020
- Battleship Gray #6C757D ΔE 0.021
- Steel Grey #6F828A ΔE 0.025
- Steel #738595 ΔE 0.036
- Stormy Blue #507B9C ΔE 0.040
- Medium Grey #7D7F7C ΔE 0.040
Use #6A7A8A 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.