#2F3F91#2F3F91

#2F3F91 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.136 H 270.8°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F91
RGB	rgb(47, 63, 145)
HSL	hsl(230, 51%, 38%)
HSV	hsv(230, 68%, 57%)
CMYK	cmyk(67.6%, 56.6%, 0%, 43.1%)
CIE-LAB	lab(29.92, 21.73, -47.34)
CIE-LCH	lch(29.92, 52.09, 294.66°)
OKLab	oklab(40.42% 0.0018 -0.1361)
OKLCH	oklch(40.42% 0.136 270.8)
XYZ	xyz(8.0589, 6.2029, 27.5552)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F91 #91812F

analogous

#2F7091 #2F3F91 #502F91

triadic

#2F3F91 #912F3F #3F912F

tetradic

#2F3F91 #912F70 #91812F #2F9150

square

#2F3F91 #912F70 #91812F #2F9150

split-complementary

#2F3F91 #91502F #70912F

monochromatic

#111735 #202B63 #2F3F91 #3E53BF #6B7CCF

Accessibility & contrast

On white

9.37

#2F3F91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#2F3F91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F91

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F91	#FFFFFF	#000000	##FFFFFF
##2F3F91	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B94

Deuteranopia (green-blind)

#00428F

Tritanopia (blue-blind)

#005361

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2f3f91;
/* rgb */ color: rgb(47, 63, 145);
/* oklch */ color: oklch(40.4% 0.136 270.8);

Tailwind

colors: {
  custom: {
    50: '#7373b2',
    500: '#2f3f91',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f91;
$custom-light: #7373b2;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f91",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 145
  },
  "hsl": {
    "h": 230.204,
    "s": 51.042,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40415,
    "c": 0.13612,
    "h": 270.8
  },
  "luminance": 0.06204
}

Semantic roles & 50–950 ramp

primary

#2F3F91

secondary

#B6A965

accent

#C34DDB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #2F3F91

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

Preview Lab → · Contrast checker → · Palette generator →