#667490
Closest named color: Grey Blue (#647D8E). oklch(55.8% 0.047 264.1), rgb(102, 116, 144).
Aa
White text reads best on this color (4.70:1).
About this color
#667490 is a medium-dark, muted blue. In OKLCH its lightness is 56%, its chroma 0.047 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.028 away. White text reads best on it, at 4.70:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.46:1 |
| White text | 4.70:1 |
Values
| HEX | #667490 |
| RGB | rgb(102, 116, 144) |
| HSL | hsl(220, 17%, 48%) |
| OKLCH | oklch(55.8% 0.047 264.1) |
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 #667490 | 4.70:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #667490 | 4.46:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #667490 text on white | 4.70:1 | AA | Lc 72.7 | Content text, not long reading |
| #667490 text on black | 4.46:1 | AA large text | Lc -29.0 | 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
#D5D9E1
oklch(88.5% 0.012 264.5)
-
Step 300
300
#BAC1CF
oklch(81% 0.021 264.4)
-
Step 400
400
#96A1B6
oklch(70.7% 0.033 263.4)
-
Step 500
500
#7C8AA4
oklch(63.1% 0.043 262.8)
-
Step 600
600 (this color)
#667490
oklch(55.8% 0.047 264.1)
-
Step 700
700
#54617A
oklch(49.1% 0.043 263.3)
-
Step 800
800
#454F63
oklch(42.7% 0.036 264.1)
-
Step 900
900
#3A4251
oklch(37.8% 0.028 263)
-
Step 950
950
#22262F
oklch(26.9% 0.018 266.3)
#667490 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) | #6B7691 | 0.010 |
| Deuteranopia (no green cones) | #67728F | 0.006 |
| Tritanopia (no blue cones) | #5B7A7D | 0.043 |
| Achromatopsia (no color) | #747474 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #667490
#667490
oklch(55.8% 0.047 264.1)
- #817254
#817254
oklch(55.8% 0.047 84.3)
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 #667490, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.028
- Metallic Blue #4F738E ΔE 0.030
- Battleship Gray #6C757D ΔE 0.032
- Stormy Blue #507B9C ΔE 0.032
- Battleship Grey #6B7C85 ΔE 0.034
- Dull Blue #49759C ΔE 0.038
- Slate Gray #708090 ΔE 0.039
- Cerulean #457B9D ΔE 0.042
Use #667490 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.