#667AEA
Closest named color: Cornflower (#6A79F7). oklch(61.9% 0.169 272.9), rgb(102, 122, 234).
Aa
Black text reads best on this color (5.53:1).
About this color
#667AEA is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.169 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.021 away. Black text reads best on it, at 5.53:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.53:1 |
| White text | 3.79:1 |
Values
| HEX | #667AEA |
| RGB | rgb(102, 122, 234) |
| HSL | hsl(231, 76%, 66%) |
| OKLCH | oklch(61.9% 0.169 272.9) |
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 #667AEA | 3.79:1 | AA large text | Lc -70.7 | Content text, not long reading |
| Black text on #667AEA | 5.53:1 | AA | Lc 38.9 | Non-text elements, placeholder text |
| #667AEA text on white | 3.79:1 | AA large text | Lc 65.2 | Content text, not long reading |
| #667AEA text on black | 5.53:1 | AA | Lc -36.5 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F8
oklch(88.5% 0.045 273)
-
Step 300
300
#AFBEF7
oklch(81% 0.082 273)
-
Step 400
400
#869AF3
oklch(70.8% 0.132 273)
-
Step 500
500 (this color)
#667AEA
oklch(61.9% 0.169 272.9)
-
Step 600
600
#5364DD
oklch(55.7% 0.184 272.9)
-
Step 700
700
#4452BF
oklch(49.1% 0.17 272.9)
-
Step 800
800
#38449B
oklch(42.8% 0.141 273)
-
Step 900
900
#2F3A7B
oklch(37.6% 0.11 272.8)
-
Step 950
950
#1C2348
oklch(27.1% 0.069 272.9)
#667AEA 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) | #4389EE | 0.047 |
| Deuteranopia (no green cones) | #2F7EE8 | 0.051 |
| Tritanopia (no blue cones) | #0F93A7 | 0.150 |
| Achromatopsia (no color) | #838383 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #667AEA
#667AEA
oklch(61.9% 0.169 272.9)
- #A08300
#A08300
oklch(61.9% 0.127 93.2)
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 #667AEA, closest first.
No curated palette has a color within ΔE 0.04 of #667AEA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.021
- Soft Blue #6488EA ΔE 0.036
- Medium Slate Blue #7B68EE ΔE 0.049
- Dark Sky Blue #448EE4 ΔE 0.060
- Clear Blue #247AFD ΔE 0.063
- Royal Blue #4169E1 ΔE 0.066
- Lavender Blue #8B88F8 ΔE 0.067
- Periwinkle #8E82FE ΔE 0.067
Use #667AEA 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.