#2F279B#2F279B

#2F279B is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.1% C 0.179 H 276.3°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#2F279B
RGB	rgb(47, 39, 155)
HSL	hsl(244, 60%, 38%)
HSV	hsv(244, 75%, 61%)
CMYK	cmyk(69.7%, 74.8%, 0%, 39.2%)
CIE-LAB	lab(25.02, 40.59, -61.48)
CIE-LCH	lch(25.02, 73.67, 303.44°)
OKLab	oklab(37.11% 0.0195 -0.1777)
OKLCH	oklch(37.11% 0.179 276.3)
XYZ	xyz(7.8123, 4.4212, 31.4457)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F279B #939B27

analogous

#27599B #2F279B #69279B

triadic

#2F279B #9B2F27 #279B2F

tetradic

#2F279B #9B2759 #939B27 #279B69

square

#2F279B #9B2759 #939B27 #279B69

split-complementary

#2F279B #9B6927 #599B27

monochromatic

#110E39 #201B6A #2F279B #3E33CC #6C64D8

Accessibility & contrast

On white

11.14

#2F279B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#2F279B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F279B

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F279B	#FFFFFF	#000000	##FFFFFF
##2F279B	1.00	11.14	1.88	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409E

Deuteranopia (green-blind)

#003699

Tritanopia (blue-blind)

#00485F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2f279b;
/* rgb */ color: rgb(47, 39, 155);
/* oklch */ color: oklch(37.1% 0.179 276.3);

Tailwind

colors: {
  custom: {
    50: '#7863ba',
    500: '#2f279b',
    950: '#000000',
  },
}

SCSS

$custom: #2f279b;
$custom-light: #7863ba;
$custom-dark: #000000;

JSON

{
  "hex": "#2f279b",
  "rgb": {
    "r": 47,
    "g": 39,
    "b": 155
  },
  "hsl": {
    "h": 244.138,
    "s": 59.794,
    "l": 38.039
  },
  "oklch": {
    "l": 0.37109,
    "c": 0.17874,
    "h": 276.3
  },
  "luminance": 0.04422
}

Semantic roles & 50–950 ramp

primary

#2F279B

secondary

#B7BE60

accent

#E345D8

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2F279B

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

Preview Lab → · Contrast checker → · Palette generator →