#2F3589#2F3589

#2F3589 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.8% C 0.138 H 274.6°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#2F3589
RGB	rgb(47, 53, 137)
HSL	hsl(236, 49%, 36%)
HSV	hsv(236, 66%, 54%)
CMYK	cmyk(65.7%, 61.3%, 0%, 46.3%)
CIE-LAB	lab(26.61, 25.52, -47.77)
CIE-LCH	lch(26.61, 54.16, 298.11°)
OKLab	oklab(37.75% 0.011 -0.1375)
OKLCH	oklch(37.75% 0.138 274.6)
XYZ	xyz(6.9593, 4.9561, 24.2519)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3589 #89832F

analogous

#2F6289 #2F3589 #562F89

triadic

#2F3589 #892F35 #35892F

tetradic

#2F3589 #892F62 #89832F #2F8956

square

#2F3589 #892F62 #89832F #2F8956

split-complementary

#2F3589 #89562F #62892F

monochromatic

#10122E #1F235B #2F3589 #3F47B7 #676ECB

Accessibility & contrast

On white

10.55

#2F3589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#2F3589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3589

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3589	#FFFFFF	#000000	##FFFFFF
##2F3589	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438C

Deuteranopia (green-blind)

#003B87

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2f3589;
/* rgb */ color: rgb(47, 53, 137);
/* oklch */ color: oklch(37.8% 0.138 274.6);

Tailwind

colors: {
  custom: {
    50: '#726cac',
    500: '#2f3589',
    950: '#000000',
  },
}

SCSS

$custom: #2f3589;
$custom-light: #726cac;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3589",
  "rgb": {
    "r": 47,
    "g": 53,
    "b": 137
  },
  "hsl": {
    "h": 236,
    "s": 48.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.37751,
    "c": 0.13795,
    "h": 274.6
  },
  "luminance": 0.04957
}

Semantic roles & 50–950 ramp

primary

#2F3589

secondary

#B2AD62

accent

#CF4FD8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2F3589

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

Preview Lab → · Contrast checker → · Palette generator →