#667DC8
Closest named color: Cool Blue (#4984B8). oklch(60.5% 0.118 269.7), rgb(102, 125, 200).
Aa
Black text reads best on this color (5.33:1).
About this color
#667DC8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.118 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.047 away. Black text reads best on it, at 5.33:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.33:1 |
| White text | 3.93:1 |
Values
| HEX | #667DC8 |
| RGB | rgb(102, 125, 200) |
| HSL | hsl(226, 47%, 59%) |
| OKLCH | oklch(60.5% 0.118 269.7) |
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 #667DC8 | 3.93:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #667DC8 | 5.33:1 | AA | Lc 37.4 | Non-text elements, placeholder text |
| #667DC8 text on white | 3.93:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #667DC8 text on black | 5.33:1 | AA | Lc -35.0 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D1D9EF
oklch(88.6% 0.031 269.8)
-
Step 300
300
#B2C0E7
oklch(81% 0.057 269.6)
-
Step 400
400
#8A9EDB
oklch(70.7% 0.093 270)
-
Step 500
500 (this color)
#667DC8
oklch(60.5% 0.118 269.7)
-
Step 600
600
#566DBE
oklch(55.5% 0.129 269.9)
-
Step 700
700
#465BA4
oklch(49.1% 0.119 269.5)
-
Step 800
800
#3A4B85
oklch(42.8% 0.098 269.6)
-
Step 900
900
#323F6A
oklch(37.8% 0.076 269.8)
-
Step 950
950
#1D253E
oklch(27% 0.048 269.5)
#667DC8 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) | #6085CB | 0.021 |
| Deuteranopia (no green cones) | #567CC6 | 0.020 |
| Tritanopia (no blue cones) | #3E8D99 | 0.105 |
| Achromatopsia (no color) | #808080 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #667DC8
#667DC8
oklch(60.5% 0.118 269.7)
- #9D7D16
#9D7D16
oklch(60.4% 0.117 89.5)
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 #667DC8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.047
- Faded Blue #658CBB ΔE 0.051
- Steel Blue #4682B4 ΔE 0.051
- Off Blue #5684AE ΔE 0.053
- Soft Blue #6488EA ΔE 0.054
- Windows Blue #3778BF ΔE 0.055
- Dusty Blue #5A86AD ΔE 0.056
- Dark Sky Blue #448EE4 ΔE 0.060
Use #667DC8 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.