#669BD6
Closest named color: Cornflower Blue (#6495ED). oklch(67.7% 0.105 252), rgb(102, 155, 214).
Aa
Black text reads best on this color (7.22:1).
About this color
#669BD6 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.105 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.042 away. Black text reads best on it, at 7.22:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.22:1 |
| White text | 2.90:1 |
Values
| HEX | #669BD6 |
| RGB | rgb(102, 155, 214) |
| HSL | hsl(212, 58%, 62%) |
| OKLCH | oklch(67.7% 0.105 252) |
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 #669BD6 | 2.90:1 | Fails | Lc -60.6 | Content text, not long reading |
| Black text on #669BD6 | 7.22:1 | AAA | Lc 48.8 | Large or bold text, headings |
| #669BD6 text on white | 2.90:1 | Fails | Lc 55.3 | Large or bold text, headings |
| #669BD6 text on black | 7.22:1 | AAA | Lc -46.5 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF1
oklch(88.4% 0.037 252.1)
-
Step 300
300
#A3C4EA
oklch(80.9% 0.065 252.2)
-
Step 400
400 (this color)
#669BD6
oklch(67.7% 0.105 252)
-
Step 500
500
#468DD7
oklch(63.2% 0.133 251.5)
-
Step 600
600
#2475C5
oklch(55.6% 0.146 252.1)
-
Step 700
700
#1562AA
oklch(49.1% 0.135 251.9)
-
Step 800
800
#16508A
oklch(42.7% 0.112 252.3)
-
Step 900
900
#1A436E
oklch(37.7% 0.087 252.1)
-
Step 950
950
#102740
oklch(26.8% 0.055 252.3)
#669BD6 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) | #839ED9 | 0.036 |
| Deuteranopia (no green cones) | #7592D5 | 0.028 |
| Tritanopia (no blue cones) | #28A8B0 | 0.090 |
| Achromatopsia (no color) | #979797 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669BD6
#669BD6
oklch(67.7% 0.105 252)
- #BF8C49
#BF8C49
oklch(67.6% 0.105 71.9)
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 #669BD6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.042
- Faded Blue #658CBB ΔE 0.051
- Chefchaouen Blue #4895EF ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.057
- Greyblue #77A1B5 ΔE 0.059
- Soft Blue #6488EA ΔE 0.065
- Silver Lake Blue #778DA9 ΔE 0.069
- Perrywinkle #8F8CE7 ΔE 0.070
Use #669BD6 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.