#2F3389#2F3389

#2F3389 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.4% C 0.141 H 275.2°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#2F3389
RGB	rgb(47, 51, 137)
HSL	hsl(237, 49%, 36%)
HSV	hsv(237, 66%, 54%)
CMYK	cmyk(65.7%, 62.8%, 0%, 46.3%)
CIE-LAB	lab(26.09, 26.85, -48.61)
CIE-LCH	lch(26.09, 55.53, 298.91°)
OKLab	oklab(37.37% 0.0128 -0.14)
OKLCH	oklch(37.37% 0.141 275.2)
XYZ	xyz(6.8700, 4.7776, 24.2222)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3389 #89852F

analogous

#2F6089 #2F3389 #582F89

triadic

#2F3389 #892F33 #33892F

tetradic

#2F3389 #892F60 #89852F #2F8958

square

#2F3389 #892F60 #89852F #2F8958

split-complementary

#2F3389 #89582F #60892F

monochromatic

#10112E #1F225B #2F3389 #3F44B7 #676CCB

Accessibility & contrast

On white

10.74

#2F3389 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#2F3389 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3389

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3389	#FFFFFF	#000000	##FFFFFF
##2F3389	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428C

Deuteranopia (green-blind)

#003A87

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2f3389;
/* rgb */ color: rgb(47, 51, 137);
/* oklch */ color: oklch(37.4% 0.141 275.2);

Tailwind

colors: {
  custom: {
    50: '#736aac',
    500: '#2f3389',
    950: '#000000',
  },
}

SCSS

$custom: #2f3389;
$custom-light: #736aac;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3389",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 137
  },
  "hsl": {
    "h": 237.333,
    "s": 48.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.37368,
    "c": 0.14058,
    "h": 275.2
  },
  "luminance": 0.04778
}

Semantic roles & 50–950 ramp

primary

#2F3389

secondary

#B2AE62

accent

#D24FD8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2F3389

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →