#6380B8
Closest named color: Off Blue (#5684AE). oklch(60.1% 0.092 262.9), rgb(99, 128, 184).
Aa
Black text reads best on this color (5.31:1).
About this color
#6380B8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.092 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.026 away. Black text reads best on it, at 5.31:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.31:1 |
| White text | 3.95:1 |
Values
| HEX | #6380B8 |
| RGB | rgb(99, 128, 184) |
| HSL | hsl(220, 37%, 55%) |
| OKLCH | oklch(60.1% 0.092 262.9) |
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 #6380B8 | 3.95:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #6380B8 | 5.31:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #6380B8 text on white | 3.95:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #6380B8 text on black | 5.31:1 | AA | Lc -34.8 | 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 500.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0D9EA
oklch(88.4% 0.025 263.3)
-
Step 300
300
#B1C1DF
oklch(80.9% 0.046 263)
-
Step 400
400
#89A1CE
oklch(70.7% 0.072 262.8)
-
Step 500
500 (this color)
#6380B8
oklch(60.1% 0.092 262.9)
-
Step 600
600
#5472AE
oklch(55.6% 0.1 263.3)
-
Step 700
700
#446096
oklch(49.2% 0.093 262.6)
-
Step 800
800
#384E79
oklch(42.6% 0.077 262.9)
-
Step 900
900
#304162
oklch(37.6% 0.061 262.9)
-
Step 950
950
#1C2639
oklch(26.9% 0.038 262.7)
#6380B8 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) | #6B84BA | 0.016 |
| Deuteranopia (no green cones) | #627CB7 | 0.011 |
| Tritanopia (no blue cones) | #428C94 | 0.083 |
| Achromatopsia (no color) | #808080 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6380B8
#6380B8
oklch(60.1% 0.092 262.9)
- #9B7B3A
#9B7B3A
oklch(60% 0.092 83)
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 #6380B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.026
- Cool Blue #4984B8 ΔE 0.029
- Dusty Blue #5A86AD ΔE 0.029
- Steel Blue #4682B4 ΔE 0.032
- Faded Blue #658CBB ΔE 0.034
- Stormy Blue #507B9C ΔE 0.051
- Windows Blue #3778BF ΔE 0.055
- Lavender Gray #7E7F9A ΔE 0.056
Use #6380B8 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.