#6687BB
Closest named color: Faded Blue (#658CBB). oklch(62% 0.088 259.3), rgb(102, 135, 187).
Aa
Black text reads best on this color (5.74:1).
About this color
#6687BB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.088 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.014 away. Black text reads best on it, at 5.74:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.74:1 |
| White text | 3.65:1 |
Values
| HEX | #6687BB |
| RGB | rgb(102, 135, 187) |
| HSL | hsl(217, 38%, 57%) |
| OKLCH | oklch(62% 0.088 259.3) |
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 #6687BB | 3.65:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #6687BB | 5.74:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #6687BB text on white | 3.65:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #6687BB text on black | 5.74:1 | AA | Lc -37.6 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D0DAE9
oklch(88.5% 0.023 258.4)
-
Step 300
300
#B0C2DD
oklch(80.9% 0.043 258.4)
-
Step 400
400
#87A2CC
oklch(70.7% 0.069 259.1)
-
Step 500
500 (this color)
#6687BB
oklch(62% 0.088 259.3)
-
Step 600
600
#5174AB
oklch(55.7% 0.095 259.2)
-
Step 700
700
#416193
oklch(49.1% 0.089 259)
-
Step 800
800
#364F77
oklch(42.6% 0.074 259.5)
-
Step 900
900
#2F4260
oklch(37.7% 0.057 259.3)
-
Step 950
950
#1C2738
oklch(27.1% 0.035 258.9)
#6687BB 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) | #748ABD | 0.020 |
| Deuteranopia (no green cones) | #6A82BA | 0.014 |
| Tritanopia (no blue cones) | #459299 | 0.078 |
| Achromatopsia (no color) | #868686 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6687BB
#6687BB
oklch(62% 0.088 259.3)
- #A28045
#A28045
oklch(62% 0.088 79.8)
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 #6687BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.014
- Dusty Blue #5A86AD ΔE 0.027
- Off Blue #5684AE ΔE 0.029
- Cool Blue #4984B8 ΔE 0.034
- Steel Blue #4682B4 ΔE 0.040
- Silver Lake Blue #778DA9 ΔE 0.042
- Blue Grey #758DA3 ΔE 0.048
- Lavender Gray #7E7F9A ΔE 0.055
Use #6687BB 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.