#6687AA
Closest named color: Dusty Blue (#5A86AD). oklch(61.2% 0.065 250.4), rgb(102, 135, 170).
Aa
Black text reads best on this color (5.61:1).
About this color
#6687AA is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.065 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.015 away. Black text reads best on it, at 5.61:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.61:1 |
| White text | 3.74:1 |
Values
| HEX | #6687AA |
| RGB | rgb(102, 135, 170) |
| HSL | hsl(211, 29%, 53%) |
| OKLCH | oklch(61.2% 0.065 250.4) |
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 #6687AA | 3.74:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #6687AA | 5.61:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #6687AA text on white | 3.74:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #6687AA text on black | 5.61:1 | AA | Lc -36.7 | 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
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B2C3D5
oklch(81% 0.032 249.7)
-
Step 400
400
#89A4C0
oklch(70.8% 0.051 249.5)
-
Step 500
500 (this color)
#6687AA
oklch(61.2% 0.065 250.4)
-
Step 600
600
#53769C
oklch(55.5% 0.072 251.2)
-
Step 700
700
#436385
oklch(49% 0.067 250.8)
-
Step 800
800
#38516C
oklch(42.7% 0.055 251)
-
Step 900
900
#304358
oklch(37.6% 0.044 251.5)
-
Step 950
950
#1C2833
oklch(27.1% 0.026 246.6)
#6687AA 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) | #7988AC | 0.025 |
| Deuteranopia (no green cones) | #7181A9 | 0.020 |
| Tritanopia (no blue cones) | #4E8F93 | 0.056 |
| Achromatopsia (no color) | #848484 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6687AA
#6687AA
oklch(61.2% 0.065 250.4)
- #9D7D58
#9D7D58
oklch(61.1% 0.065 70.2)
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 #6687AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.015
- Off Blue #5684AE ΔE 0.022
- Faded Blue #658CBB ΔE 0.026
- Silver Lake Blue #778DA9 ΔE 0.029
- Blue Grey #758DA3 ΔE 0.030
- Light Slate Gray #778899 ΔE 0.034
- Steel #738595 ΔE 0.034
- Lavender Gray #7E7F9A ΔE 0.039
Use #6687AA 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.