#687FBA
Closest named color: Off Blue (#5684AE). oklch(60.3% 0.094 267.3), rgb(104, 127, 186).
Aa
Black text reads best on this color (5.33:1).
About this color
#687FBA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.094 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.034 away. Black text reads best on it, at 5.33:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.33:1 |
| White text | 3.93:1 |
Values
| HEX | #687FBA |
| RGB | rgb(104, 127, 186) |
| HSL | hsl(223, 37%, 57%) |
| OKLCH | oklch(60.3% 0.094 267.3) |
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 #687FBA | 3.93:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #687FBA | 5.33:1 | AA | Lc 37.4 | Non-text elements, placeholder text |
| #687FBA text on white | 3.93:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #687FBA text on black | 5.33:1 | AA | Lc -35.0 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300
#B3C0DF
oklch(80.8% 0.046 267.4)
-
Step 400
400
#8CA0CF
oklch(70.8% 0.073 266.6)
-
Step 500
500 (this color)
#687FBA
oklch(60.3% 0.094 267.3)
-
Step 600
600
#5970B0
oklch(55.6% 0.104 268)
-
Step 700
700
#495E97
oklch(49.2% 0.095 267.5)
-
Step 800
800
#3C4D7A
oklch(42.7% 0.078 267.4)
-
Step 900
900
#334062
oklch(37.6% 0.061 267.5)
-
Step 950
950
#1E263A
oklch(27.1% 0.039 267.1)
#687FBA 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) | #6A84BC | 0.014 |
| Deuteranopia (no green cones) | #627DB9 | 0.010 |
| Tritanopia (no blue cones) | #4B8B94 | 0.084 |
| Achromatopsia (no color) | #808080 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #687FBA
#687FBA
oklch(60.3% 0.094 267.3)
- #997D38
#997D38
oklch(60.2% 0.094 87.1)
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 #687FBA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.034
- Dusty Blue #5A86AD ΔE 0.036
- Cool Blue #4984B8 ΔE 0.036
- Faded Blue #658CBB ΔE 0.036
- Steel Blue #4682B4 ΔE 0.040
- Lavender Gray #7E7F9A ΔE 0.056
- Stormy Blue #507B9C ΔE 0.057
- Silver Lake Blue #778DA9 ΔE 0.058
Use #687FBA 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.