#2F34B9#2F34B9

#2F34B9 is a dark, highly saturated blue. Relative luminance 0.066; OKLCH L 42.1% C 0.203 H 272.0°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#2F34B9
RGB	rgb(47, 52, 185)
HSL	hsl(238, 59%, 45%)
HSV	hsv(238, 75%, 73%)
CMYK	cmyk(74.6%, 71.9%, 0%, 27.5%)
CIE-LAB	lab(30.79, 43.12, -70.02)
CIE-LCH	lch(30.79, 82.23, 301.63°)
OKLab	oklab(42.14% 0.0072 -0.2026)
OKLCH	oklch(42.14% 0.203 272)
XYZ	xyz(11.1543, 6.5619, 46.5683)
Luminance	0.0656 (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

#2F34B9 #B9B42F

analogous

#2F79B9 #2F34B9 #6F2FB9

triadic

#2F34B9 #B92F34 #34B92F

tetradic

#2F34B9 #B92F79 #B9B42F #2FB96F

square

#2F34B9 #B92F79 #B9B42F #2FB96F

split-complementary

#2F34B9 #B96F2F #79B92F

monochromatic

#161957 #232688 #2F34B9 #5257D3 #8386DF

Accessibility & contrast

On white

9.08

#2F34B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#2F34B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F34B9

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F34B9	#FFFFFF	#000000	##FFFFFF
##2F34B9	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBD

Deuteranopia (green-blind)

#0042B7

Tritanopia (blue-blind)

#005A73

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f34b9;
/* rgb */ color: rgb(47, 52, 185);
/* oklch */ color: oklch(42.1% 0.203 272.0);

Tailwind

colors: {
  custom: {
    50: '#7d6dcf',
    500: '#2f34b9',
    950: '#000000',
  },
}

SCSS

$custom: #2f34b9;
$custom-light: #7d6dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#2f34b9",
  "rgb": {
    "r": 47,
    "g": 52,
    "b": 185
  },
  "hsl": {
    "h": 237.826,
    "s": 59.483,
    "l": 45.49
  },
  "oklch": {
    "l": 0.42139,
    "c": 0.20276,
    "h": 272
  },
  "luminance": 0.06563
}

Semantic roles & 50–950 ramp

primary

#2F34B9

secondary

#C9C67B

accent

#DD45E3

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2F34B9

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

Preview Lab → · Contrast checker → · Palette generator →