#669ACA
Closest named color: Faded Blue (#658CBB). oklch(66.9% 0.091 247.4), rgb(102, 154, 202).
Aa
Black text reads best on this color (7.04:1).
About this color
#669ACA is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.091 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.040 away. Black text reads best on it, at 7.04:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 7.04:1 |
| White text | 2.98:1 |
Values
| HEX | #669ACA |
| RGB | rgb(102, 154, 202) |
| HSL | hsl(209, 49%, 60%) |
| OKLCH | oklch(66.9% 0.091 247.4) |
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 #669ACA | 2.98:1 | Fails | Lc -61.7 | Content text, not long reading |
| Black text on #669ACA | 7.04:1 | AAA | Lc 47.7 | Large or bold text, headings |
| #669ACA text on white | 2.98:1 | Fails | Lc 56.3 | Large or bold text, headings |
| #669ACA text on black | 7.04:1 | AAA | Lc -45.4 | 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 500.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CDDBE9
oklch(88.5% 0.025 248.1)
-
Step 300
300
#AAC4DC
oklch(80.9% 0.044 246.2)
-
Step 400
400
#7DA5CB
oklch(70.7% 0.071 247.6)
-
Step 500
500 (this color)
#669ACA
oklch(66.9% 0.091 247.4)
-
Step 600
600
#3F78AA
oklch(55.6% 0.099 247.1)
-
Step 700
700
#316592
oklch(49.2% 0.091 247.1)
-
Step 800
800
#295276
oklch(42.6% 0.076 247.2)
-
Step 900
900
#26445F
oklch(37.6% 0.059 247.2)
-
Step 950
950
#172838
oklch(27% 0.038 247.9)
#669ACA 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) | #869BCC | 0.038 |
| Deuteranopia (no green cones) | #7991C9 | 0.031 |
| Tritanopia (no blue cones) | #36A5AA | 0.077 |
| Achromatopsia (no color) | #959595 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669ACA
#669ACA
oklch(66.9% 0.091 247.4)
- #BA8A56
#BA8A56
oklch(66.9% 0.09 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 #669ACA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.040
- Greyblue #77A1B5 ΔE 0.046
- Silver Lake Blue #778DA9 ΔE 0.053
- Cornflower Blue #6495ED ΔE 0.058
- Cool Gray #8D99AE ΔE 0.060
- Blue Grey #758DA3 ΔE 0.060
- Bluegrey #85A3B2 ΔE 0.061
- Bluey Grey #89A0B0 ΔE 0.062
Use #669ACA 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.