#2F34B8#2F34B8

#2F34B8 is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.0% C 0.202 H 272.1°. Best body text is #FFFFFF at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#2F34B8
RGB	rgb(47, 52, 184)
HSL	hsl(238, 59%, 45%)
HSV	hsv(238, 74%, 72%)
CMYK	cmyk(74.5%, 71.7%, 0%, 27.8%)
CIE-LAB	lab(30.69, 42.78, -69.59)
CIE-LCH	lch(30.69, 81.69, 301.58°)
OKLab	oklab(42.04% 0.0073 -0.2014)
OKLCH	oklch(42.04% 0.202 272.1)
XYZ	xyz(11.0491, 6.5199, 46.0143)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F34B8 #B8B32F

analogous

#2F79B8 #2F34B8 #6E2FB8

triadic

#2F34B8 #B82F34 #34B82F

tetradic

#2F34B8 #B82F79 #B8B32F #2FB86E

square

#2F34B8 #B82F79 #B8B32F #2FB86E

split-complementary

#2F34B8 #B86E2F #79B82F

monochromatic

#161857 #232687 #2F34B8 #5256D3 #8286DF

Accessibility & contrast

On white

9.11

#2F34B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#2F34B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F34B8

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F34B8	#FFFFFF	#000000	##FFFFFF
##2F34B8	1.00	9.11	2.30	9.11
#FFFFFF	9.11	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBC

Deuteranopia (green-blind)

#0042B6

Tritanopia (blue-blind)

#005972

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f34b8;
/* rgb */ color: rgb(47, 52, 184);
/* oklch */ color: oklch(42.0% 0.202 272.1);

Tailwind

colors: {
  custom: {
    50: '#7d6ccf',
    500: '#2f34b8',
    950: '#000000',
  },
}

SCSS

$custom: #2f34b8;
$custom-light: #7d6ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#2f34b8",
  "rgb": {
    "r": 47,
    "g": 52,
    "b": 184
  },
  "hsl": {
    "h": 237.81,
    "s": 59.307,
    "l": 45.294
  },
  "oklch": {
    "l": 0.42037,
    "c": 0.20151,
    "h": 272.1
  },
  "luminance": 0.06521
}

Semantic roles & 50–950 ramp

primary

#2F34B8

secondary

#C8C57B

accent

#DD45E2

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2F34B8

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

Preview Lab → · Contrast checker → · Palette generator →