#383EA6
Closest named color: Sapphire (#2138AB). oklch(42.6% 0.164 274.5), rgb(56, 62, 166).
Aa
White text reads best on this color (8.72:1).
About this color
#383EA6 is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.164 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.034 away. White text reads best on it, at 8.72:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.40:1 |
| White text | 8.72:1 |
Values
| HEX | #383EA6 |
| RGB | rgb(56, 62, 166) |
| HSL | hsl(237, 50%, 44%) |
| OKLCH | oklch(42.6% 0.164 274.5) |
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 #383EA6 | 8.72:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #383EA6 | 2.40:1 | Fails | Lc 14.6 | Not readable |
| #383EA6 text on white | 8.72:1 | AAA | Lc 89.4 | Fine for body text |
| #383EA6 text on black | 2.40:1 | Fails | Lc -12.8 | 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 800.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CED7FD
oklch(88.4% 0.053 274.8)
-
Step 300
300
#AEBCFF
oklch(80.9% 0.096 274.9)
-
Step 400
400
#8597FF
oklch(70.8% 0.153 274.4)
-
Step 500
500
#6978FD
oklch(63% 0.196 274.5)
-
Step 600
600
#545CED
oklch(55.5% 0.214 274.6)
-
Step 700
700
#454BCE
oklch(49.1% 0.198 274.4)
-
Step 800
800 (this color)
#383EA6
oklch(42.6% 0.164 274.5)
-
Step 900
900
#303784
oklch(37.8% 0.128 274.6)
-
Step 950
950
#1C214D
oklch(27.1% 0.08 274.8)
#383EA6 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) | #0050A9 | 0.054 |
| Deuteranopia (no green cones) | #0046A4 | 0.044 |
| Tritanopia (no blue cones) | #00586C | 0.135 |
| Achromatopsia (no color) | #4B4B4B | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383EA6
#383EA6
oklch(42.6% 0.164 274.5)
- #5E4D00
#5E4D00
oklch(42.5% 0.087 94.3)
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 #383EA6, closest first.
No curated palette has a color within ΔE 0.04 of #383EA6.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.034
- Blueberry #464196 ΔE 0.035
- Dark Slate Blue #483D8B ΔE 0.050
- Cobalt #1E488F ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.057
- Blue Blue #2242C7 ΔE 0.058
- Blue With A Hint Of Purple #533CC6 ΔE 0.065
- Indigo Blue #3A18B1 ΔE 0.066
Use #383EA6 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.