#667FEA
Closest named color: Soft Blue (#6488EA). oklch(62.9% 0.163 271.2), rgb(102, 127, 234).
Aa
Black text reads best on this color (5.78:1).
About this color
#667FEA is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.163 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.023 away. Black text reads best on it, at 5.78:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.78:1 |
| White text | 3.62:1 |
Values
| HEX | #667FEA |
| RGB | rgb(102, 127, 234) |
| HSL | hsl(229, 76%, 66%) |
| OKLCH | oklch(62.9% 0.163 271.2) |
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 #667FEA | 3.62:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #667FEA | 5.78:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #667FEA text on white | 3.62:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #667FEA text on black | 5.78:1 | AA | Lc -38.0 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CED8F7
oklch(88.4% 0.044 271.3)
-
Step 300
300
#ADBEF5
oklch(80.8% 0.08 271.2)
-
Step 400
400
#849BF0
oklch(70.7% 0.127 271.3)
-
Step 500
500 (this color)
#667FEA
oklch(62.9% 0.163 271.2)
-
Step 600
600
#5066D9
oklch(55.6% 0.177 271.3)
-
Step 700
700
#4154BC
oklch(49.1% 0.164 271.2)
-
Step 800
800
#354598
oklch(42.6% 0.136 271.2)
-
Step 900
900
#2E3B79
oklch(37.6% 0.106 271.5)
-
Step 950
950
#1B2347
oklch(27% 0.068 271.8)
#667FEA 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) | #4D8CEE | 0.038 |
| Deuteranopia (no green cones) | #3B81E8 | 0.042 |
| Tritanopia (no blue cones) | #0B97A9 | 0.146 |
| Achromatopsia (no color) | #868686 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #667FEA
#667FEA
oklch(62.9% 0.163 271.2)
- #A68500
#A68500
oklch(63% 0.129 91.2)
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 #667FEA, closest first.
No curated palette has a color within ΔE 0.04 of #667FEA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.023
- Cornflower #6A79F7 ΔE 0.026
- Dark Sky Blue #448EE4 ΔE 0.050
- Cornflower Blue #6495ED ΔE 0.057
- Chefchaouen Blue #4895EF ΔE 0.059
- Medium Slate Blue #7B68EE ΔE 0.060
- Lavender Blue #8B88F8 ΔE 0.060
- Periwinkle #8E82FE ΔE 0.063
Use #667FEA 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.