#2F59B3#2F59B3

#2F59B3 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.5% C 0.151 H 263.1°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#2F59B3
RGB	rgb(47, 89, 179)
HSL	hsl(221, 58%, 44%)
HSV	hsv(221, 74%, 70%)
CMYK	cmyk(73.7%, 50.3%, 0%, 29.8%)
CIE-LAB	lab(39.58, 17.22, -52.12)
CIE-LCH	lch(39.58, 54.89, 288.28°)
OKLab	oklab(48.51% -0.018 -0.1498)
OKLCH	oklch(48.51% 0.151 263.1)
XYZ	xyz(12.8785, 11.0024, 44.0840)
Luminance	0.1100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F59B3 #B3892F

analogous

#2F9BB3 #2F59B3 #472FB3

triadic

#2F59B3 #B32F59 #59B32F

tetradic

#2F59B3 #B32F9B #B3892F #2FB347

square

#2F59B3 #B32F9B #B3892F #2FB347

split-complementary

#2F59B3 #B3472F #9BB32F

monochromatic

#162952 #224183 #2F59B3 #4F78D1 #7F9DDD

Accessibility & contrast

On white

6.56

#2F59B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#2F59B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F59B3

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F59B3	#FFFFFF	#000000	##FFFFFF
##2F59B3	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2364B6

Deuteranopia (green-blind)

#0058B1

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2f59b3;
/* rgb */ color: rgb(47, 89, 179);
/* oklch */ color: oklch(48.5% 0.151 263.1);

Tailwind

colors: {
  custom: {
    50: '#7987ca',
    500: '#2f59b3',
    950: '#000000',
  },
}

SCSS

$custom: #2f59b3;
$custom-light: #7987ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f59b3",
  "rgb": {
    "r": 47,
    "g": 89,
    "b": 179
  },
  "hsl": {
    "h": 220.909,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.48509,
    "c": 0.15086,
    "h": 263.1
  },
  "luminance": 0.11004
}

Semantic roles & 50–950 ramp

primary

#2F59B3

secondary

#C6AD78

accent

#B046E2

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2F59B3

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

Preview Lab → · Contrast checker → · Palette generator →