#667CFF
Closest named color: Cornflower (#6A79F7). oklch(63.7% 0.195 272.5), rgb(102, 124, 255).
Aa
Black text reads best on this color (5.89:1).
About this color
#667CFF is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.195 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.014 away. Black text reads best on it, at 5.89:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.89:1 |
| White text | 3.56:1 |
Values
| HEX | #667CFF |
| RGB | rgb(102, 124, 255) |
| HSL | hsl(231, 100%, 70%) |
| OKLCH | oklch(63.7% 0.195 272.5) |
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 #667CFF | 3.56:1 | AA large text | Lc -68.4 | Content text, not long reading |
| Black text on #667CFF | 5.89:1 | AA | Lc 41.2 | Non-text elements, placeholder text |
| #667CFF text on white | 3.56:1 | AA large text | Lc 62.9 | Content text, not long reading |
| #667CFF text on black | 5.89:1 | AA | Lc -38.8 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CDD8FD
oklch(88.6% 0.052 272.2)
-
Step 300
300
#ABBDFF
oklch(80.9% 0.096 272.3)
-
Step 400
400
#8198FF
oklch(70.7% 0.153 272.5)
-
Step 500
500 (this color)
#667CFF
oklch(63.7% 0.195 272.5)
-
Step 600
600
#4F5FEC
oklch(55.7% 0.211 272.6)
-
Step 700
700
#404DCD
oklch(49.1% 0.196 272.4)
-
Step 800
800
#3440A6
oklch(42.7% 0.163 272.3)
-
Step 900
900
#2D3884
oklch(37.8% 0.127 272.6)
-
Step 950
950
#1A214D
oklch(26.9% 0.081 272.9)
#667CFF 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) | #2E8FFF | 0.060 |
| Deuteranopia (no green cones) | #0081FC | 0.064 |
| Tritanopia (no blue cones) | #009AB2 | 0.167 |
| Achromatopsia (no color) | #888888 | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #667CFF
#667CFF
oklch(63.7% 0.195 272.5)
- #A78800
#A78800
oklch(63.7% 0.13 92.6)
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 #667CFF, closest first.
No curated palette has a color within ΔE 0.04 of #667CFF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.014
- Soft Blue #6488EA ΔE 0.046
- Medium Slate Blue #7B68EE ΔE 0.055
- Periwinkle #8E82FE ΔE 0.058
- Clear Blue #247AFD ΔE 0.058
- Lavender Blue #8B88F8 ΔE 0.062
- Dodger Blue #1E90FF ΔE 0.066
- Dark Sky Blue #448EE4 ΔE 0.071
Use #667CFF 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.