#688AA9
Closest named color: Silver Lake Blue (#778DA9). oklch(62% 0.061 246.5), rgb(104, 138, 169).
Aa
Black text reads best on this color (5.79:1).
About this color
#688AA9 is a medium-dark, muted blue. In OKLCH its lightness is 62%, its chroma 0.061 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.022 away. Black text reads best on it, at 5.79:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 5.79:1 |
| White text | 3.62:1 |
Values
| HEX | #688AA9 |
| RGB | rgb(104, 138, 169) |
| HSL | hsl(209, 27%, 54%) |
| OKLCH | oklch(62% 0.061 246.5) |
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 #688AA9 | 3.62:1 | AA large text | Lc -69.3 | Content text, not long reading |
| Black text on #688AA9 | 5.79:1 | AA | Lc 40.3 | Non-text elements, placeholder text |
| #688AA9 text on white | 3.62:1 | AA large text | Lc 63.8 | Content text, not long reading |
| #688AA9 text on black | 5.79:1 | AA | Lc -37.9 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EAEF
oklch(93.5% 0.009 247.9)
-
Step 200
200
#D1DAE4
oklch(88.4% 0.017 250.9)
-
Step 300
300
#B2C3D3
oklch(80.9% 0.029 246.5)
-
Step 400
400
#89A4BD
oklch(70.7% 0.047 246.5)
-
Step 500
500 (this color)
#688AA9
oklch(62% 0.061 246.5)
-
Step 600
600
#537798
oklch(55.6% 0.066 246.9)
-
Step 700
700
#436482
oklch(49.1% 0.062 246.8)
-
Step 800
800
#375269
oklch(42.7% 0.05 245.1)
-
Step 900
900
#304456
oklch(37.8% 0.04 246.3)
-
Step 950
950
#1C2832
oklch(27% 0.025 244)
#688AA9 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) | #7E8AAB | 0.029 |
| Deuteranopia (no green cones) | #7583A8 | 0.024 |
| Tritanopia (no blue cones) | #529194 | 0.050 |
| Achromatopsia (no color) | #868686 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688AA9
#688AA9
oklch(62% 0.061 246.5)
- #9F7F5F
#9F7F5F
oklch(61.9% 0.06 66.3)
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 #688AA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.022
- Blue Grey #758DA3 ΔE 0.022
- Dusty Blue #5A86AD ΔE 0.023
- Faded Blue #658CBB ΔE 0.027
- Light Slate Gray #778899 ΔE 0.028
- Off Blue #5684AE ΔE 0.031
- Steel #738595 ΔE 0.031
- Lavender Gray #7E7F9A ΔE 0.040
Use #688AA9 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.