#6B77BE
Closest named color: Cool Blue (#4984B8). oklch(59% 0.109 275.3), rgb(107, 119, 190).
Aa
Black text reads best on this color (5.00:1).
About this color
#6B77BE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.109 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.052 away. Black text reads best on it, at 5.00:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #6B77BE |
| RGB | rgb(107, 119, 190) |
| HSL | hsl(231, 39%, 58%) |
| OKLCH | oklch(59% 0.109 275.3) |
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 #6B77BE | 4.19:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #6B77BE | 5.00:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #6B77BE text on white | 4.19:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #6B77BE text on black | 5.00:1 | AA | Lc -32.8 | 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 600.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D3D8EC
oklch(88.4% 0.028 274.6)
-
Step 300
300
#B7BFE1
oklch(81% 0.049 274.8)
-
Step 400
400
#929DD2
oklch(70.7% 0.079 275.1)
-
Step 500
500
#7884C6
oklch(63.1% 0.1 275.3)
-
Step 600
600 (this color)
#6B77BE
oklch(59% 0.109 275.3)
-
Step 700
700
#515B9A
oklch(49.2% 0.101 275.2)
-
Step 800
800
#424A7D
oklch(42.7% 0.085 275.5)
-
Step 900
900
#383E64
oklch(37.7% 0.065 276)
-
Step 950
950
#21253B
oklch(27.2% 0.041 275.4)
#6B77BE 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) | #5E7FC1 | 0.025 |
| Deuteranopia (no green cones) | #5779BC | 0.026 |
| Tritanopia (no blue cones) | #4F8591 | 0.097 |
| Achromatopsia (no color) | #7C7C7C | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B77BE
#6B77BE
oklch(59% 0.109 275.3)
- #927C20
#927C20
oklch(59% 0.11 94.9)
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 #6B77BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.052
- Off Blue #5684AE ΔE 0.054
- Steel Blue #4682B4 ΔE 0.054
- Windows Blue #3778BF ΔE 0.056
- Dusty Blue #5A86AD ΔE 0.058
- Faded Blue #658CBB ΔE 0.060
- Deep Lilac #966EBD ΔE 0.067
- French Blue #436BAD ΔE 0.067
Use #6B77BE 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.