#39369E
Closest named color: Sapphire (#2138AB). oklch(40.5% 0.163 277.5), rgb(57, 54, 158).
Aa
White text reads best on this color (9.56:1).
About this color
#39369E is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.163 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.036 away. White text reads best on it, at 9.56:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.19:1 |
| White text | 9.56:1 |
Values
| HEX | #39369E |
| RGB | rgb(57, 54, 158) |
| HSL | hsl(242, 49%, 42%) |
| OKLCH | oklch(40.5% 0.163 277.5) |
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 #39369E | 9.56:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #39369E | 2.19:1 | Fails | Lc 12.4 | Not readable |
| #39369E text on white | 9.56:1 | AAA | Lc 91.6 | Preferred for body text |
| #39369E text on black | 2.19:1 | Fails | Lc -10.8 | 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
#E5E9FD
oklch(93.7% 0.027 276.8)
-
Step 200
200
#D0D7FD
oklch(88.6% 0.053 277)
-
Step 300
300
#B1BBFE
oklch(80.9% 0.095 277.5)
-
Step 400
400
#8B95FE
oklch(70.8% 0.153 277.6)
-
Step 500
500
#7176FC
oklch(63.1% 0.195 277.6)
-
Step 600
600
#5C5AEB
oklch(55.6% 0.212 277.6)
-
Step 700
700
#4C49CC
oklch(49.1% 0.196 277.3)
-
Step 800
800 (this color)
#39369E
oklch(40.5% 0.163 277.5)
-
Step 900
900
#343683
oklch(37.8% 0.127 277.3)
-
Step 950
950
#1E204D
oklch(27% 0.081 277.5)
#39369E 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) | #004AA1 | 0.060 |
| Deuteranopia (no green cones) | #00419C | 0.051 |
| Tritanopia (no blue cones) | #005165 | 0.136 |
| Achromatopsia (no color) | #454545 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39369E
#39369E
oklch(40.5% 0.163 277.5)
- #564900
#564900
oklch(40.6% 0.084 97.5)
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 #39369E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.036
- Blueberry #464196 ΔE 0.038
- Dark Slate Blue #483D8B ΔE 0.045
- Indigo Blue #3A18B1 ΔE 0.055
- Cobalt #1E488F ΔE 0.057
- Imperial Purple #480CA8 ΔE 0.063
- Majorelle Blue #3F37C9 ΔE 0.070
- Blue Blue #2242C7 ΔE 0.074
Use #39369E 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.