#669ED2
Closest named color: Greyblue (#77A1B5). oklch(68.1% 0.097 247.7), rgb(102, 158, 210).
Aa
Black text reads best on this color (7.38:1).
About this color
#669ED2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.097 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.049 away. Black text reads best on it, at 7.38:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.38:1 |
| White text | 2.84:1 |
Values
| HEX | #669ED2 |
| RGB | rgb(102, 158, 210) |
| HSL | hsl(209, 55%, 61%) |
| OKLCH | oklch(68.1% 0.097 247.7) |
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 #669ED2 | 2.84:1 | Fails | Lc -59.7 | Large or bold text, headings |
| Black text on #669ED2 | 7.38:1 | AAA | Lc 49.6 | Large or bold text, headings |
| #669ED2 text on white | 2.84:1 | Fails | Lc 54.4 | Large or bold text, headings |
| #669ED2 text on black | 7.38:1 | AAA | Lc -47.4 | 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
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEF
oklch(88.5% 0.034 246.8)
-
Step 300
300
#A2C5E7
oklch(80.9% 0.061 247.8)
-
Step 400
400 (this color)
#669ED2
oklch(68.1% 0.097 247.7)
-
Step 500
500
#438FD1
oklch(63.2% 0.125 247.5)
-
Step 600
600
#1E78BE
oklch(55.7% 0.135 247.6)
-
Step 700
700
#0D64A4
oklch(49.1% 0.126 248)
-
Step 800
800
#115285
oklch(42.7% 0.105 247.9)
-
Step 900
900
#18446A
oklch(37.6% 0.081 248)
-
Step 950
950
#0F283E
oklch(26.9% 0.052 247.6)
#669ED2 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) | #889FD4 | 0.040 |
| Deuteranopia (no green cones) | #7A94D1 | 0.033 |
| Tritanopia (no blue cones) | #2CAAB0 | 0.082 |
| Achromatopsia (no color) | #999999 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669ED2
#669ED2
oklch(68.1% 0.097 247.7)
- #C18D54
#C18D54
oklch(68.2% 0.097 67.5)
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 #669ED2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.049
- Cornflower Blue #6495ED ΔE 0.053
- Faded Blue #658CBB ΔE 0.054
- Chefchaouen Blue #4895EF ΔE 0.061
- Bluegrey #85A3B2 ΔE 0.063
- Bluey Grey #89A0B0 ΔE 0.064
- Cool Gray #8D99AE ΔE 0.065
- Silver Lake Blue #778DA9 ΔE 0.066
Use #669ED2 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.