#383A63
Closest named color: Dark Grey Blue (#29465B). oklch(36.7% 0.07 280.2), rgb(56, 58, 99).
Aa
White text reads best on this color (10.74:1).
About this color
#383A63 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.070 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.046 away. White text reads best on it, at 10.74:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.95:1 |
| White text | 10.74:1 |
Values
| HEX | #383A63 |
| RGB | rgb(56, 58, 99) |
| HSL | hsl(237, 28%, 30%) |
| OKLCH | oklch(36.7% 0.07 280.2) |
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 #383A63 | 10.74:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #383A63 | 1.95:1 | Fails | Lc 9.1 | Not readable |
| #383A63 text on white | 10.74:1 | AAA | Lc 94.8 | Preferred for body text |
| #383A63 text on black | 1.95:1 | Fails | Lc -7.8 | Not readable |
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 900.
-
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
#D5D7ED
oklch(88.4% 0.03 281.6)
-
Step 300
300
#B9BEE3
oklch(81% 0.052 279.1)
-
Step 400
400
#969BD5
oklch(70.7% 0.085 280.2)
-
Step 500
500
#7D81C9
oklch(63% 0.108 280.4)
-
Step 600
600
#676AB6
oklch(55.6% 0.117 280.2)
-
Step 700
700
#56589D
oklch(49.2% 0.109 280.3)
-
Step 800
800
#46487F
oklch(42.7% 0.09 280.3)
-
Step 900
900 (this color)
#383A63
oklch(36.7% 0.07 280.2)
-
Step 950
950
#22243C
oklch(27.1% 0.045 279.3)
#383A63 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) | #2C3F65 | 0.021 |
| Deuteranopia (no green cones) | #293C62 | 0.022 |
| Tritanopia (no blue cones) | #2B4249 | 0.062 |
| Achromatopsia (no color) | #3E3E3E | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383A63
#383A63
oklch(36.7% 0.07 280.2)
- #473F0A
#473F0A
oklch(36.5% 0.07 100.2)
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 #383A63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.055
- Charcoal #264653 ΔE 0.057
- Twilight Blue #0A437A ΔE 0.058
- Marine Blue #01386A ΔE 0.058
- Onyx #343A40 ΔE 0.063
- Gunmetal #293241 ΔE 0.067
Use #383A63 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.