#2F31B6#2F31B6

#2F31B6 is a dark, highly saturated blue. Relative luminance 0.062; OKLCH L 41.4% C 0.202 H 272.6°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#2F31B6
RGB	rgb(47, 49, 182)
HSL	hsl(239, 59%, 45%)
HSV	hsv(239, 74%, 71%)
CMYK	cmyk(74.2%, 73.1%, 0%, 28.6%)
CIE-LAB	lab(29.86, 43.86, -69.78)
CIE-LCH	lch(29.86, 82.42, 302.15°)
OKLab	oklab(41.38% 0.0091 -0.2019)
OKLCH	oklch(41.38% 0.202 272.6)
XYZ	xyz(10.7113, 6.1773, 44.8747)
Luminance	0.0618 (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

#2F31B6 #B6B42F

analogous

#2F75B6 #2F31B6 #702FB6

triadic

#2F31B6 #B62F31 #31B62F

tetradic

#2F31B6 #B62F75 #B6B42F #2FB670

square

#2F31B6 #B62F75 #B6B42F #2FB670

split-complementary

#2F31B6 #B6702F #75B62F

monochromatic

#161755 #222485 #2F31B6 #5052D2 #8182DE

Accessibility & contrast

On white

9.39

#2F31B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#2F31B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F31B6

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F31B6	#FFFFFF	#000000	##FFFFFF
##2F31B6	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBA

Deuteranopia (green-blind)

#0040B4

Tritanopia (blue-blind)

#005770

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2f31b6;
/* rgb */ color: rgb(47, 49, 182);
/* oklch */ color: oklch(41.4% 0.202 272.6);

Tailwind

colors: {
  custom: {
    50: '#7d6acd',
    500: '#2f31b6',
    950: '#000000',
  },
}

SCSS

$custom: #2f31b6;
$custom-light: #7d6acd;
$custom-dark: #000000;

JSON

{
  "hex": "#2f31b6",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 182
  },
  "hsl": {
    "h": 239.111,
    "s": 58.952,
    "l": 44.902
  },
  "oklch": {
    "l": 0.41381,
    "c": 0.20212,
    "h": 272.6
  },
  "luminance": 0.06178
}

Semantic roles & 50–950 ramp

primary

#2F31B6

secondary

#C7C679

accent

#E046E2

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2F31B6

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

Preview Lab → · Contrast checker → · Palette generator →