#6689BB
Closest named color: Faded Blue (#658CBB). oklch(62.4% 0.086 257.3), rgb(102, 137, 187).
Aa
Black text reads best on this color (5.86:1).
About this color
#6689BB is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.086 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.008 away. Black text reads best on it, at 5.86:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.86:1 |
| White text | 3.58:1 |
Values
| HEX | #6689BB |
| RGB | rgb(102, 137, 187) |
| HSL | hsl(215, 38%, 57%) |
| OKLCH | oklch(62.4% 0.086 257.3) |
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 #6689BB | 3.58:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #6689BB | 5.86:1 | AA | Lc 40.7 | Non-text elements, placeholder text |
| #6689BB text on white | 3.58:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #6689BB text on black | 5.86:1 | AA | Lc -38.3 | 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
#B0C2DC
oklch(80.9% 0.042 257.5)
-
Step 400
400
#86A2CB
oklch(70.6% 0.068 257.8)
-
Step 500
500 (this color)
#6689BB
oklch(62.4% 0.086 257.3)
-
Step 600
600
#4F74A9
oklch(55.5% 0.093 257.4)
-
Step 700
700
#406291
oklch(49.2% 0.086 256.7)
-
Step 800
800
#355076
oklch(42.8% 0.072 257)
-
Step 900
900
#2E425F
oklch(37.6% 0.056 257.6)
-
Step 950
950
#1B2738
oklch(27% 0.036 257.1)
#6689BB 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) | #768CBD | 0.023 |
| Deuteranopia (no green cones) | #6C84BA | 0.015 |
| Tritanopia (no blue cones) | #45949A | 0.076 |
| Achromatopsia (no color) | #878787 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6689BB
#6689BB
oklch(62.4% 0.086 257.3)
- #A48149
#A48149
oklch(62.5% 0.085 77.9)
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 #6689BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.008
- Dusty Blue #5A86AD ΔE 0.027
- Off Blue #5684AE ΔE 0.031
- Cool Blue #4984B8 ΔE 0.036
- Silver Lake Blue #778DA9 ΔE 0.039
- Steel Blue #4682B4 ΔE 0.043
- Blue Grey #758DA3 ΔE 0.045
- Light Slate Gray #778899 ΔE 0.054
Use #6689BB 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.