#677D96
Closest named color: Grey Blue (#647D8E). oklch(58.2% 0.046 251.9), rgb(103, 125, 150).
Aa
Black text reads best on this color (4.95:1).
About this color
#677D96 is a medium-dark, muted blue. In OKLCH its lightness is 58%, its chroma 0.046 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.014 away. Black text reads best on it, at 4.95:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.95:1 |
| White text | 4.24:1 |
Values
| HEX | #677D96 |
| RGB | rgb(103, 125, 150) |
| HSL | hsl(212, 19%, 50%) |
| OKLCH | oklch(58.2% 0.046 251.9) |
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 #677D96 | 4.24:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #677D96 | 4.95:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #677D96 text on white | 4.24:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #677D96 text on black | 4.95:1 | AA | Lc -32.4 | 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
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE1
oklch(88.6% 0.012 252.1)
-
Step 300
300
#B7C2CE
oklch(80.9% 0.021 250.4)
-
Step 400
400
#92A2B5
oklch(70.6% 0.033 252.8)
-
Step 500
500
#778CA3
oklch(63.2% 0.042 250.9)
-
Step 600
600 (this color)
#677D96
oklch(58.2% 0.046 251.9)
-
Step 700
700
#4F6379
oklch(49.2% 0.043 251.1)
-
Step 800
800
#415162
oklch(42.8% 0.035 250.2)
-
Step 900
900
#374350
oklch(37.8% 0.027 250.6)
-
Step 950
950
#20272F
oklch(26.9% 0.018 251.9)
#677D96 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) | #747E97 | 0.018 |
| Deuteranopia (no green cones) | #6E7995 | 0.014 |
| Tritanopia (no blue cones) | #598385 | 0.041 |
| Achromatopsia (no color) | #7B7B7B | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #677D96
#677D96
oklch(58.2% 0.046 251.9)
- #8C775D
#8C775D
oklch(58.2% 0.046 72.7)
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 #677D96, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.014
- Slate Gray #708090 ΔE 0.019
- Battleship Grey #6B7C85 ΔE 0.026
- Steel Grey #6F828A ΔE 0.029
- Steel #738595 ΔE 0.030
- Stormy Blue #507B9C ΔE 0.030
- Lavender Gray #7E7F9A ΔE 0.034
- Dusty Blue #5A86AD ΔE 0.038
Use #677D96 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.