#688CD2
Closest named color: Faded Blue (#658CBB). oklch(64.3% 0.113 262.9), rgb(104, 140, 210).
Aa
Black text reads best on this color (6.27:1).
About this color
#688CD2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.113 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.036 away. Black text reads best on it, at 6.27:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.27:1 |
| White text | 3.34:1 |
Values
| HEX | #688CD2 |
| RGB | rgb(104, 140, 210) |
| HSL | hsl(220, 54%, 62%) |
| OKLCH | oklch(64.3% 0.113 262.9) |
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 #688CD2 | 3.34:1 | AA large text | Lc -66.3 | Content text, not long reading |
| Black text on #688CD2 | 6.27:1 | AA | Lc 43.3 | Non-text elements, placeholder text |
| #688CD2 text on white | 3.34:1 | AA large text | Lc 60.8 | Content text, not long reading |
| #688CD2 text on black | 6.27:1 | AA | Lc -40.9 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEE
oklch(88.5% 0.03 260.7)
-
Step 300
300
#AEC1E5
oklch(80.9% 0.055 263.2)
-
Step 400
400
#83A1D8
oklch(70.7% 0.088 262.2)
-
Step 500
500 (this color)
#688CD2
oklch(64.3% 0.113 262.9)
-
Step 600
600
#4C71BB
oklch(55.6% 0.123 262.9)
-
Step 700
700
#3D5EA1
oklch(49% 0.114 263.1)
-
Step 800
800
#324D83
oklch(42.7% 0.096 262.9)
-
Step 900
900
#2C4169
oklch(37.8% 0.074 262.4)
-
Step 950
950
#1A263D
oklch(27% 0.046 262.7)
#688CD2 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) | #7192D5 | 0.021 |
| Deuteranopia (no green cones) | #6588D0 | 0.012 |
| Tritanopia (no blue cones) | #379BA5 | 0.102 |
| Achromatopsia (no color) | #8C8C8C | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688CD2
#688CD2
oklch(64.3% 0.113 262.9)
- #AF862F
#AF862F
oklch(64.4% 0.113 82.6)
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 #688CD2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.036
- Soft Blue #6488EA ΔE 0.040
- Dark Sky Blue #448EE4 ΔE 0.041
- Cornflower Blue #6495ED ΔE 0.042
- Chefchaouen Blue #4895EF ΔE 0.050
- Cool Blue #4984B8 ΔE 0.057
- Dusty Blue #5A86AD ΔE 0.060
- Off Blue #5684AE ΔE 0.061
Use #688CD2 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.