#2F34A5#2F34A5

#2F34A5 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.1% C 0.177 H 273.2°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#2F34A5
RGB	rgb(47, 52, 165)
HSL	hsl(237, 56%, 42%)
HSV	hsv(237, 72%, 65%)
CMYK	cmyk(71.5%, 68.5%, 0%, 35.3%)
CIE-LAB	lab(28.84, 36.21, -61.27)
CIE-LCH	lch(28.84, 71.17, 300.58°)
OKLab	oklab(40.15% 0.0098 -0.1771)
OKLCH	oklch(40.15% 0.177 273.2)
XYZ	xyz(9.1895, 5.7760, 36.2206)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F34A5 #A5A02F

analogous

#2F6FA5 #2F34A5 #652FA5

triadic

#2F34A5 #A52F34 #34A52F

tetradic

#2F34A5 #A52F6F #A5A02F #2FA565

square

#2F34A5 #A52F6F #A5A02F #2FA565

split-complementary

#2F34A5 #A5652F #6FA52F

monochromatic

#141646 #212575 #2F34A5 #474CCB #767AD8

Accessibility & contrast

On white

9.74

#2F34A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2F34A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F34A5

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F34A5	#FFFFFF	#000000	##FFFFFF
##2F34A5	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA8

Deuteranopia (green-blind)

#003EA3

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f34a5;
/* rgb */ color: rgb(47, 52, 165);
/* oklch */ color: oklch(40.1% 0.177 273.2);

Tailwind

colors: {
  custom: {
    50: '#796cc1',
    500: '#2f34a5',
    950: '#000000',
  },
}

SCSS

$custom: #2f34a5;
$custom-light: #796cc1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f34a5",
  "rgb": {
    "r": 47,
    "g": 52,
    "b": 165
  },
  "hsl": {
    "h": 237.458,
    "s": 55.66,
    "l": 41.569
  },
  "oklch": {
    "l": 0.40148,
    "c": 0.17736,
    "h": 273.2
  },
  "luminance": 0.05777
}

Semantic roles & 50–950 ramp

primary

#2F34A5

secondary

#C0BD70

accent

#D949DF

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F34A5

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

Preview Lab → · Contrast checker → · Palette generator →