#2F59B1#2F59B1

#2F59B1 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.4% C 0.148 H 262.9°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#2F59B1
RGB	rgb(47, 89, 177)
HSL	hsl(221, 58%, 44%)
HSV	hsv(221, 73%, 69%)
CMYK	cmyk(73.4%, 49.7%, 0%, 30.6%)
CIE-LAB	lab(39.45, 16.46, -51.16)
CIE-LCH	lch(39.45, 53.75, 287.84°)
OKLab	oklab(48.36% -0.0183 -0.147)
OKLCH	oklch(48.36% 0.148 262.9)
XYZ	xyz(12.6777, 10.9221, 43.0265)
Luminance	0.1092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F59B1 #B1872F

analogous

#2F9AB1 #2F59B1 #462FB1

triadic

#2F59B1 #B12F59 #59B12F

tetradic

#2F59B1 #B12F9A #B1872F #2FB146

square

#2F59B1 #B12F9A #B1872F #2FB146

split-complementary

#2F59B1 #B1462F #9AB12F

monochromatic

#152850 #224181 #2F59B1 #4D78D0 #7E9CDD

Accessibility & contrast

On white

6.59

#2F59B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#2F59B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F59B1

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F59B1	#FFFFFF	#000000	##FFFFFF
##2F59B1	1.00	6.59	3.18	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2663B4

Deuteranopia (green-blind)

#0057AF

Tritanopia (blue-blind)

#006E7C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2f59b1;
/* rgb */ color: rgb(47, 89, 177);
/* oklch */ color: oklch(48.4% 0.148 262.9);

Tailwind

colors: {
  custom: {
    50: '#7987c9',
    500: '#2f59b1',
    950: '#000000',
  },
}

SCSS

$custom: #2f59b1;
$custom-light: #7987c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f59b1",
  "rgb": {
    "r": 47,
    "g": 89,
    "b": 177
  },
  "hsl": {
    "h": 220.615,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.48362,
    "c": 0.1481,
    "h": 262.9
  },
  "luminance": 0.10923
}

Semantic roles & 50–950 ramp

primary

#2F59B1

secondary

#C5AC76

accent

#AF47E1

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2F59B1

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

Preview Lab → · Contrast checker → · Palette generator →