#2F289B#2F289B

#2F289B is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.3% C 0.178 H 276.1°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#2F289B
RGB	rgb(47, 40, 155)
HSL	hsl(244, 59%, 38%)
HSV	hsv(244, 74%, 61%)
CMYK	cmyk(69.7%, 74.2%, 0%, 39.2%)
CIE-LAB	lab(25.22, 40.02, -61.14)
CIE-LCH	lch(25.22, 73.07, 303.21°)
OKLab	oklab(37.25% 0.0189 -0.1767)
OKLCH	oklch(37.25% 0.178 276.1)
XYZ	xyz(7.8455, 4.4878, 31.4568)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F289B #949B28

analogous

#285A9B #2F289B #68289B

triadic

#2F289B #9B2F28 #289B2F

tetradic

#2F289B #9B285A #949B28 #289B68

square

#2F289B #9B285A #949B28 #289B68

split-complementary

#2F289B #9B6828 #5A9B28

monochromatic

#110F3A #201B6A #2F289B #3E35CB #6D66D7

Accessibility & contrast

On white

11.07

#2F289B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#2F289B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F289B

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F289B	#FFFFFF	#000000	##FFFFFF
##2F289B	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419E

Deuteranopia (green-blind)

#003799

Tritanopia (blue-blind)

#00495F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2f289b;
/* rgb */ color: rgb(47, 40, 155);
/* oklch */ color: oklch(37.3% 0.178 276.1);

Tailwind

colors: {
  custom: {
    50: '#7864ba',
    500: '#2f289b',
    950: '#000000',
  },
}

SCSS

$custom: #2f289b;
$custom-light: #7864ba;
$custom-dark: #000000;

JSON

{
  "hex": "#2f289b",
  "rgb": {
    "r": 47,
    "g": 40,
    "b": 155
  },
  "hsl": {
    "h": 243.652,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.37254,
    "c": 0.1777,
    "h": 276.1
  },
  "luminance": 0.04488
}

Semantic roles & 50–950 ramp

primary

#2F289B

secondary

#B8BD61

accent

#E246D9

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2F289B

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

Preview Lab → · Contrast checker → · Palette generator →