#6380AA
Closest named color: Off Blue (#5684AE). oklch(59.4% 0.073 257.6), rgb(99, 128, 170).
Aa
Black text reads best on this color (5.19:1).
About this color
#6380AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.073 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.017 away. Black text reads best on it, at 5.19:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.19:1 |
| White text | 4.03:1 |
Values
| HEX | #6380AA |
| RGB | rgb(99, 128, 170) |
| HSL | hsl(215, 29%, 53%) |
| OKLCH | oklch(59.4% 0.073 257.6) |
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 #6380AA | 4.03:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #6380AA | 5.19:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #6380AA text on white | 4.03:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #6380AA text on black | 5.19:1 | AA | Lc -34.1 | 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
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE6
oklch(88.5% 0.019 255.5)
-
Step 300
300
#B3C2D8
oklch(81% 0.035 257.9)
-
Step 400
400
#8BA2C5
oklch(70.7% 0.058 258.7)
-
Step 500
500 (this color)
#6380AA
oklch(59.4% 0.073 257.6)
-
Step 600
600
#5675A2
oklch(55.7% 0.079 257.6)
-
Step 700
700
#46628A
oklch(49.2% 0.073 257.3)
-
Step 800
800
#395070
oklch(42.7% 0.061 256.8)
-
Step 900
900
#31425B
oklch(37.6% 0.048 257.9)
-
Step 950
950
#1D2735
oklch(27% 0.03 256.9)
#6380AA 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) | #7182AC | 0.020 |
| Deuteranopia (no green cones) | #697BA9 | 0.015 |
| Tritanopia (no blue cones) | #4A898E | 0.065 |
| Achromatopsia (no color) | #7E7E7E | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6380AA
#6380AA
oklch(59.4% 0.073 257.6)
- #97794B
#97794B
oklch(59.4% 0.073 77.3)
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 #6380AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.017
- Dusty Blue #5A86AD ΔE 0.018
- Cool Blue #4984B8 ΔE 0.032
- Steel Blue #4682B4 ΔE 0.032
- Stormy Blue #507B9C ΔE 0.035
- Faded Blue #658CBB ΔE 0.038
- Lavender Gray #7E7F9A ΔE 0.042
- Grey Blue #647D8E ΔE 0.042
Use #6380AA 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.