#6A77BC
Closest named color: Cool Blue (#4984B8). oklch(58.9% 0.107 274.6), rgb(106, 119, 188).
Aa
Black text reads best on this color (4.97:1).
About this color
#6A77BC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.107 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.050 away. Black text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 4.97:1 |
| White text | 4.21:1 |
Values
| HEX | #6A77BC |
| RGB | rgb(106, 119, 188) |
| HSL | hsl(230, 38%, 58%) |
| OKLCH | oklch(58.9% 0.107 274.6) |
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 #6A77BC | 4.21:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #6A77BC | 4.97:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #6A77BC text on white | 4.21:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #6A77BC text on black | 4.97:1 | AA | Lc -32.6 | 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 600.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D3D8EB
oklch(88.4% 0.027 274.1)
-
Step 300
300
#B7BFE0
oklch(80.9% 0.047 274.6)
-
Step 400
400
#929DD1
oklch(70.6% 0.077 275)
-
Step 500
500
#7885C5
oklch(63.2% 0.098 274.5)
-
Step 600
600 (this color)
#6A77BC
oklch(58.9% 0.107 274.6)
-
Step 700
700
#505B99
oklch(49.1% 0.1 274.5)
-
Step 800
800
#424B7C
oklch(42.8% 0.082 274.5)
-
Step 900
900
#373F64
oklch(37.8% 0.064 273.7)
-
Step 950
950
#20253A
oklch(27% 0.04 273.2)
#6A77BC 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) | #5E7FBF | 0.024 |
| Deuteranopia (no green cones) | #5878BA | 0.023 |
| Tritanopia (no blue cones) | #4E8591 | 0.094 |
| Achromatopsia (no color) | #7B7B7B | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6A77BC
#6A77BC
oklch(58.9% 0.107 274.6)
- #917B24
#917B24
oklch(58.8% 0.106 94.4)
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 #6A77BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.050
- Off Blue #5684AE ΔE 0.052
- Steel Blue #4682B4 ΔE 0.052
- Windows Blue #3778BF ΔE 0.055
- Dusty Blue #5A86AD ΔE 0.056
- Faded Blue #658CBB ΔE 0.059
- Stormy Blue #507B9C ΔE 0.065
- Flat Blue #3C73A8 ΔE 0.065
Use #6A77BC 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.