#677290
Closest named color: Metallic Blue (#4F738E). oklch(55.4% 0.049 269.1), rgb(103, 114, 144).
Aa
White text reads best on this color (4.78:1).
About this color
#677290 is a medium-dark, muted blue. In OKLCH its lightness is 55%, its chroma 0.049 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.031 away. White text reads best on it, at 4.78:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.38:1 |
| White text | 4.78:1 |
Values
| HEX | #677290 |
| RGB | rgb(103, 114, 144) |
| HSL | hsl(224, 17%, 48%) |
| OKLCH | oklch(55.4% 0.049 269.1) |
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 #677290 | 4.78:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #677290 | 4.38:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #677290 text on white | 4.78:1 | AA | Lc 73.2 | Content text, not long reading |
| #677290 text on black | 4.38:1 | AA large text | Lc -28.5 | Dividers and decoration only |
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
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D6D9E1
oklch(88.5% 0.011 269.5)
-
Step 300
300
#BBC0CF
oklch(80.8% 0.022 271.1)
-
Step 400
400
#97A0B7
oklch(70.6% 0.035 268.5)
-
Step 500
500
#7E89A5
oklch(63.1% 0.044 268.3)
-
Step 600
600 (this color)
#677290
oklch(55.4% 0.049 269.1)
-
Step 700
700
#56607B
oklch(49.1% 0.045 268.9)
-
Step 800
800
#464E64
oklch(42.6% 0.038 269.2)
-
Step 900
900
#3B4152
oklch(37.7% 0.03 269.7)
-
Step 950
950
#232630
oklch(27% 0.019 272)
#677290 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) | #697491 | 0.007 |
| Deuteranopia (no green cones) | #65718F | 0.004 |
| Tritanopia (no blue cones) | #5C787C | 0.044 |
| Achromatopsia (no color) | #727272 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #677290
#677290
oklch(55.4% 0.049 269.1)
- #7E7252
#7E7252
oklch(55.5% 0.049 89.9)
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 #677290, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.031
- Grey Blue #647D8E ΔE 0.033
- Battleship Gray #6C757D ΔE 0.034
- Stormy Blue #507B9C ΔE 0.036
- Dull Blue #49759C ΔE 0.039
- Battleship Grey #6B7C85 ΔE 0.039
- Grey Purple #826D8C ΔE 0.041
- Slate Gray #708090 ΔE 0.044
Use #677290 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.