#677A92
Closest named color: Grey Blue (#647D8E). oklch(57.3% 0.043 254.4), rgb(103, 122, 146).
Aa
Black text reads best on this color (4.77:1).
About this color
#677A92 is a medium-dark, muted blue. In OKLCH its lightness is 57%, its chroma 0.043 and its hue 254°. 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 4.77:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.77:1 |
| White text | 4.39:1 |
Values
| HEX | #677A92 |
| RGB | rgb(103, 122, 146) |
| HSL | hsl(213, 17%, 49%) |
| OKLCH | oklch(57.3% 0.043 254.4) |
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 #677A92 | 4.39:1 | AA large text | Lc -76.0 | Fine for body text |
| Black text on #677A92 | 4.77:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #677A92 text on white | 4.39:1 | AA large text | Lc 70.5 | Content text, not long reading |
| #677A92 text on black | 4.77:1 | AA | Lc -31.2 | 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
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE0
oklch(88.6% 0.011 247.9)
-
Step 300
300
#B8C2CD
oklch(81% 0.019 250.6)
-
Step 400
400
#94A2B4
oklch(70.7% 0.031 254.7)
-
Step 500
500
#798BA2
oklch(63.1% 0.041 254.7)
-
Step 600
600 (this color)
#677A92
oklch(57.3% 0.043 254.4)
-
Step 700
700
#516278
oklch(49.1% 0.041 255)
-
Step 800
800
#435061
oklch(42.7% 0.033 255.2)
-
Step 900
900
#38424F
oklch(37.5% 0.026 255.1)
-
Step 950
950
#21272F
oklch(27% 0.017 255.7)
#677A92 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) | #717B93 | 0.015 |
| Deuteranopia (no green cones) | #6D7691 | 0.013 |
| Tritanopia (no blue cones) | #5B7F82 | 0.037 |
| Achromatopsia (no color) | #787878 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #677A92
#677A92
oklch(57.3% 0.043 254.4)
- #88755C
#88755C
oklch(57.3% 0.043 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 #677A92, closest first.
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 0.023
- Slate Gray #708090 ΔE 0.023
- Stormy Blue #507B9C ΔE 0.030
- Battleship Gray #6C757D ΔE 0.031
- Steel Grey #6F828A ΔE 0.032
- Steel #738595 ΔE 0.037
- Lavender Gray #7E7F9A ΔE 0.039
Use #677A92 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.