#688AAC
Closest named color: Dusty Blue (#5A86AD). oklch(62.1% 0.064 248.9), rgb(104, 138, 172).
Aa
Black text reads best on this color (5.81:1).
About this color
#688AAC is a medium-light, muted blue. In OKLCH its lightness is 62%, its chroma 0.064 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.021 away. Black text reads best on it, at 5.81:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.81:1 |
| White text | 3.60:1 |
Values
| HEX | #688AAC |
| RGB | rgb(104, 138, 172) |
| HSL | hsl(210, 29%, 54%) |
| OKLCH | oklch(62.1% 0.064 248.9) |
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 #688AAC | 3.60:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #688AAC | 5.81:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #688AAC text on white | 3.60:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #688AAC text on black | 5.81:1 | AA | Lc -38.0 | 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
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D1DAE4
oklch(88.4% 0.017 250.9)
-
Step 300
300
#B2C3D5
oklch(81% 0.032 249.7)
-
Step 400
400
#89A4BF
oklch(70.8% 0.05 248.5)
-
Step 500
500 (this color)
#688AAC
oklch(62.1% 0.064 248.9)
-
Step 600
600
#52779B
oklch(55.6% 0.07 248.5)
-
Step 700
700
#436484
oklch(49.2% 0.064 248.5)
-
Step 800
800
#37516B
oklch(42.5% 0.054 249.2)
-
Step 900
900
#304457
oklch(37.8% 0.041 247.7)
-
Step 950
950
#1C2833
oklch(27.1% 0.026 246.6)
#688AAC 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) | #7D8BAE | 0.028 |
| Deuteranopia (no green cones) | #7484AB | 0.021 |
| Tritanopia (no blue cones) | #509295 | 0.055 |
| Achromatopsia (no color) | #878787 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688AAC
#688AAC
oklch(62.1% 0.064 248.9)
- #A0805C
#A0805C
oklch(62.1% 0.064 69.5)
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 #688AAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.021
- Faded Blue #658CBB ΔE 0.022
- Silver Lake Blue #778DA9 ΔE 0.022
- Blue Grey #758DA3 ΔE 0.024
- Off Blue #5684AE ΔE 0.029
- Light Slate Gray #778899 ΔE 0.032
- Steel #738595 ΔE 0.035
- Lavender Gray #7E7F9A ΔE 0.042
Use #688AAC 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.