#2F34A6#2F34A6

#2F34A6 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.2% C 0.179 H 273.1°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#2F34A6
RGB	rgb(47, 52, 166)
HSL	hsl(237, 56%, 42%)
HSV	hsv(237, 72%, 65%)
CMYK	cmyk(71.7%, 68.7%, 0%, 34.9%)
CIE-LAB	lab(28.93, 36.56, -61.72)
CIE-LCH	lch(28.93, 71.73, 300.64°)
OKLab	oklab(40.24% 0.0097 -0.1784)
OKLCH	oklch(40.24% 0.179 273.1)
XYZ	xyz(9.2809, 5.8126, 36.7018)
Luminance	0.0581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F34A6 #A6A12F

analogous

#2F70A6 #2F34A6 #662FA6

triadic

#2F34A6 #A62F34 #34A62F

tetradic

#2F34A6 #A62F70 #A6A12F #2FA666

square

#2F34A6 #A62F70 #A6A12F #2FA666

split-complementary

#2F34A6 #A6662F #70A62F

monochromatic

#141647 #212576 #2F34A6 #474DCB #777BD8

Accessibility & contrast

On white

9.71

#2F34A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2F34A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F34A6

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F34A6	#FFFFFF	#000000	##FFFFFF
##2F34A6	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAA

Deuteranopia (green-blind)

#003FA4

Tritanopia (blue-blind)

#005368

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f34a6;
/* rgb */ color: rgb(47, 52, 166);
/* oklch */ color: oklch(40.2% 0.179 273.1);

Tailwind

colors: {
  custom: {
    50: '#796cc1',
    500: '#2f34a6',
    950: '#000000',
  },
}

SCSS

$custom: #2f34a6;
$custom-light: #796cc1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f34a6",
  "rgb": {
    "r": 47,
    "g": 52,
    "b": 166
  },
  "hsl": {
    "h": 237.479,
    "s": 55.869,
    "l": 41.765
  },
  "oklch": {
    "l": 0.40245,
    "c": 0.17866,
    "h": 273.1
  },
  "luminance": 0.05813
}

Semantic roles & 50–950 ramp

primary

#2F34A6

secondary

#C1BD70

accent

#D949DF

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F34A6

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

Preview Lab → · Contrast checker → · Palette generator →