#383983
Closest named color: Dark Slate Blue (#483D8B). oklch(38.7% 0.122 278.5), rgb(56, 57, 131).
Aa
White text reads best on this color (10.09:1).
About this color
#383983 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.122 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.032 away. White text reads best on it, at 10.09:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.08:1 |
| White text | 10.09:1 |
Values
| HEX | #383983 |
| RGB | rgb(56, 57, 131) |
| HSL | hsl(239, 40%, 37%) |
| OKLCH | oklch(38.7% 0.122 278.5) |
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 #383983 | 10.09:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #383983 | 2.08:1 | Fails | Lc 10.8 | Not readable |
| #383983 text on white | 10.09:1 | AAA | Lc 93.1 | Preferred for body text |
| #383983 text on black | 2.08:1 | Fails | Lc -9.3 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D1D6FB
oklch(88.4% 0.051 279.2)
-
Step 300
300
#B3BBFB
oklch(80.9% 0.091 278.6)
-
Step 400
400
#8D95FA
oklch(70.7% 0.147 278.5)
-
Step 500
500
#7477F6
oklch(63.1% 0.186 278.6)
-
Step 600
600
#5F5CE5
oklch(55.6% 0.202 278.6)
-
Step 700
700
#4F4AC7
oklch(49% 0.188 278.7)
-
Step 800
800
#403EA1
oklch(42.7% 0.156 278.4)
-
Step 900
900 (this color)
#383983
oklch(38.7% 0.122 278.5)
-
Step 950
950
#1F204B
oklch(26.9% 0.078 278.8)
#383983 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) | #094586 | 0.050 |
| Deuteranopia (no green cones) | #003F81 | 0.051 |
| Tritanopia (no blue cones) | #124A58 | 0.106 |
| Achromatopsia (no color) | #424242 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383983
#383983
oklch(38.7% 0.122 278.5)
- #4F4400
#4F4400
oklch(38.6% 0.08 98.7)
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 #383983, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.044
- Cobalt #1E488F ΔE 0.048
- Twilight Blue #0A437A ΔE 0.053
- Light Navy #155084 ΔE 0.068
- Sapphire #2138AB ΔE 0.072
- Dusk Blue #26538D ΔE 0.072
- Marine Blue #01386A ΔE 0.072
Use #383983 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.