#667CB7
Closest named color: Off Blue (#5684AE). oklch(59.4% 0.094 267.9), rgb(102, 124, 183).
Aa
Black text reads best on this color (5.13:1).
About this color
#667CB7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.094 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.034 away. Black text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.13:1 |
| White text | 4.09:1 |
Values
| HEX | #667CB7 |
| RGB | rgb(102, 124, 183) |
| HSL | hsl(224, 36%, 56%) |
| OKLCH | oklch(59.4% 0.094 267.9) |
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 #667CB7 | 4.09:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #667CB7 | 5.13:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #667CB7 text on white | 4.09:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #667CB7 text on black | 5.13:1 | AA | Lc -33.6 | 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 500.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D2D9EB
oklch(88.5% 0.026 268.8)
-
Step 300
300
#B4C0DF
oklch(80.9% 0.046 268.6)
-
Step 400
400
#8D9FCF
oklch(70.6% 0.073 268.5)
-
Step 500
500 (this color)
#667CB7
oklch(59.4% 0.094 267.9)
-
Step 600
600
#5970B0
oklch(55.6% 0.104 268)
-
Step 700
700
#495E97
oklch(49.2% 0.095 267.5)
-
Step 800
800
#3C4D7A
oklch(42.7% 0.078 267.4)
-
Step 900
900
#334062
oklch(37.6% 0.061 267.5)
-
Step 950
950
#1E263A
oklch(27.1% 0.039 267.1)
#667CB7 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) | #6781B9 | 0.014 |
| Deuteranopia (no green cones) | #5F7AB6 | 0.011 |
| Tritanopia (no blue cones) | #498891 | 0.084 |
| Achromatopsia (no color) | #7D7D7D | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #667CB7
#667CB7
oklch(59.4% 0.094 267.9)
- #967B35
#967B35
oklch(59.4% 0.095 88)
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 #667CB7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.034
- Cool Blue #4984B8 ΔE 0.036
- Dusty Blue #5A86AD ΔE 0.038
- Steel Blue #4682B4 ΔE 0.038
- Faded Blue #658CBB ΔE 0.044
- Stormy Blue #507B9C ΔE 0.052
- Windows Blue #3778BF ΔE 0.053
- Lavender Gray #7E7F9A ΔE 0.057
Use #667CB7 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.