#668DD6
Closest named color: Soft Blue (#6488EA). oklch(64.6% 0.118 262.2), rgb(102, 141, 214).
Aa
Black text reads best on this color (6.34:1).
About this color
#668DD6 is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.118 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.036 away. Black text reads best on it, at 6.34:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.34:1 |
| White text | 3.30:1 |
Values
| HEX | #668DD6 |
| RGB | rgb(102, 141, 214) |
| HSL | hsl(219, 58%, 62%) |
| OKLCH | oklch(64.6% 0.118 262.2) |
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 #668DD6 | 3.30:1 | AA large text | Lc -65.8 | Content text, not long reading |
| Black text on #668DD6 | 6.34:1 | AA | Lc 43.7 | Non-text elements, placeholder text |
| #668DD6 text on white | 3.30:1 | AA large text | Lc 60.3 | Content text, not long reading |
| #668DD6 text on black | 6.34:1 | AA | Lc -41.4 | 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
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300
#ADC1E7
oklch(80.9% 0.058 263.2)
-
Step 400
400
#81A1DB
oklch(70.8% 0.093 262)
-
Step 500
500 (this color)
#668DD6
oklch(64.6% 0.118 262.2)
-
Step 600
600
#4871BE
oklch(55.6% 0.129 261.9)
-
Step 700
700
#3A5EA4
oklch(49.1% 0.12 262.3)
-
Step 800
800
#304D85
oklch(42.7% 0.1 262.3)
-
Step 900
900
#2B416A
oklch(37.8% 0.076 262)
-
Step 950
950
#19263E
oklch(27% 0.049 262)
#668DD6 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) | #7093D9 | 0.021 |
| Deuteranopia (no green cones) | #6389D4 | 0.012 |
| Tritanopia (no blue cones) | #2D9DA8 | 0.105 |
| Achromatopsia (no color) | #8D8D8D | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668DD6
#668DD6
oklch(64.6% 0.118 262.2)
- #B28629
#B28629
oklch(64.7% 0.118 81.9)
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 #668DD6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.036
- Cornflower Blue #6495ED ΔE 0.037
- Dark Sky Blue #448EE4 ΔE 0.037
- Faded Blue #658CBB ΔE 0.041
- Chefchaouen Blue #4895EF ΔE 0.044
- Perrywinkle #8F8CE7 ΔE 0.060
- Cool Blue #4984B8 ΔE 0.061
- Dusty Blue #5A86AD ΔE 0.065
Use #668DD6 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.