#6693DA
Closest named color: Cornflower Blue (#6495ED). oklch(66.1% 0.117 259.2), rgb(102, 147, 218).
Aa
Black text reads best on this color (6.75:1).
About this color
#6693DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.117 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.028 away. Black text reads best on it, at 6.75:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.75:1 |
| White text | 3.11:1 |
Values
| HEX | #6693DA |
| RGB | rgb(102, 147, 218) |
| HSL | hsl(217, 61%, 63%) |
| OKLCH | oklch(66.1% 0.117 259.2) |
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 #6693DA | 3.11:1 | AA large text | Lc -63.4 | Content text, not long reading |
| Black text on #6693DA | 6.75:1 | AA | Lc 46.1 | Large or bold text, headings |
| #6693DA text on white | 3.11:1 | AA large text | Lc 58.0 | Large or bold text, headings |
| #6693DA text on black | 6.75:1 | AA | Lc -43.8 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200
#CDDAEF
oklch(88.5% 0.032 260)
-
Step 300
300
#ABC2E6
oklch(80.9% 0.057 259.3)
-
Step 400
400
#7EA2DA
oklch(70.7% 0.092 259)
-
Step 500
500 (this color)
#6693DA
oklch(66.1% 0.117 259.2)
-
Step 600
600
#4372BD
oklch(55.5% 0.128 259.4)
-
Step 700
700
#3560A3
oklch(49.2% 0.118 259)
-
Step 800
800
#2C4E84
oklch(42.6% 0.099 259.3)
-
Step 900
900
#28416A
oklch(37.6% 0.077 259.8)
-
Step 950
950
#18273E
oklch(27.2% 0.048 258.7)
#6693DA 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) | #7798DD | 0.025 |
| Deuteranopia (no green cones) | #698DD8 | 0.016 |
| Tritanopia (no blue cones) | #26A3AD | 0.105 |
| Achromatopsia (no color) | #929292 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6693DA
#6693DA
oklch(66.1% 0.117 259.2)
- #B98931
#B98931
oklch(66.1% 0.118 78.9)
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 #6693DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.028
- Chefchaouen Blue #4895EF ΔE 0.039
- Dark Sky Blue #448EE4 ΔE 0.040
- Soft Blue #6488EA ΔE 0.042
- Faded Blue #658CBB ΔE 0.047
- Perrywinkle #8F8CE7 ΔE 0.059
- Cool Blue #4984B8 ΔE 0.071
- Silver Lake Blue #778DA9 ΔE 0.073
Use #6693DA 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.