#2F30AB#2F30AB

#2F30AB is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.1% C 0.189 H 273.5°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#2F30AB
RGB	rgb(47, 48, 171)
HSL	hsl(240, 57%, 43%)
HSV	hsv(240, 73%, 67%)
CMYK	cmyk(72.5%, 71.9%, 0%, 32.9%)
CIE-LAB	lab(28.53, 40.72, -65.39)
CIE-LCH	lch(28.53, 77.03, 301.91°)
OKLab	oklab(40.1% 0.0114 -0.1891)
OKLCH	oklch(40.1% 0.189 273.5)
XYZ	xyz(9.5775, 5.6576, 39.1075)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F30AB #ABAA2F

analogous

#2F6EAB #2F30AB #6C2FAB

triadic

#2F30AB #AB2F30 #30AB2F

tetradic

#2F30AB #AB2F6E #ABAA2F #2FAB6C

square

#2F30AB #AB2F6E #ABAA2F #2FAB6C

split-complementary

#2F30AB #AB6C2F #6EAB2F

monochromatic

#15154B #22237B #2F30AB #4A4BCD #7A7BDA

Accessibility & contrast

On white

9.85

#2F30AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2F30AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F30AB

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F30AB	#FFFFFF	#000000	##FFFFFF
##2F30AB	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AF

Deuteranopia (green-blind)

#003DA9

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2f30ab;
/* rgb */ color: rgb(47, 48, 171);
/* oklch */ color: oklch(40.1% 0.189 273.5);

Tailwind

colors: {
  custom: {
    50: '#7b69c5',
    500: '#2f30ab',
    950: '#000000',
  },
}

SCSS

$custom: #2f30ab;
$custom-light: #7b69c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f30ab",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 171
  },
  "hsl": {
    "h": 239.516,
    "s": 56.881,
    "l": 42.745
  },
  "oklch": {
    "l": 0.40102,
    "c": 0.18946,
    "h": 273.5
  },
  "luminance": 0.05659
}

Semantic roles & 50–950 ramp

primary

#2F30AB

secondary

#C3C273

accent

#DF48E0

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2F30AB

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

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