#669CE7
Closest named color: Cornflower Blue (#6495ED). oklch(68.7% 0.125 256.8), rgb(102, 156, 231).
Aa
Black text reads best on this color (7.47:1).
About this color
#669CE7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.125 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.023 away. Black text reads best on it, at 7.47:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.47:1 |
| White text | 2.80:1 |
Values
| HEX | #669CE7 |
| RGB | rgb(102, 156, 231) |
| HSL | hsl(215, 73%, 65%) |
| OKLCH | oklch(68.7% 0.125 256.8) |
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 #669CE7 | 2.80:1 | Fails | Lc -59.1 | Large or bold text, headings |
| Black text on #669CE7 | 7.47:1 | AAA | Lc 50.2 | Large or bold text, headings |
| #669CE7 text on white | 2.80:1 | Fails | Lc 53.9 | Large or bold text, headings |
| #669CE7 text on black | 7.47:1 | AAA | Lc -48.0 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C7DBF6
oklch(88.5% 0.043 255.9)
-
Step 300
300
#A0C3F3
oklch(80.9% 0.078 256.4)
-
Step 400
400 (this color)
#669CE7
oklch(68.7% 0.125 256.8)
-
Step 500
500
#4289E8
oklch(63.1% 0.16 256.6)
-
Step 600
600
#1F70D6
oklch(55.5% 0.174 256.8)
-
Step 700
700
#115DBA
oklch(49.1% 0.163 257)
-
Step 800
800
#124D96
oklch(42.7% 0.133 256.6)
-
Step 900
900
#174178
oklch(37.8% 0.105 256.6)
-
Step 950
950
#0F2646
oklch(26.9% 0.066 257.2)
#669CE7 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) | #7DA1EA | 0.031 |
| Deuteranopia (no green cones) | #6D95E5 | 0.019 |
| Tritanopia (no blue cones) | #00ADB7 | 0.111 |
| Achromatopsia (no color) | #9A9A9A | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669CE7
#669CE7
oklch(68.7% 0.125 256.8)
- #C68F31
#C68F31
oklch(68.8% 0.125 76.7)
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 #669CE7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.023
- Chefchaouen Blue #4895EF ΔE 0.038
- Dark Sky Blue #448EE4 ΔE 0.053
- Soft Blue #6488EA ΔE 0.055
- Periwinkle Blue #8F99FB ΔE 0.059
- Perrywinkle #8F8CE7 ΔE 0.061
- Faded Blue #658CBB ΔE 0.071
- Lavender Blue #8B88F8 ΔE 0.073
Use #669CE7 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.