#2B59B1#2B59B1

#2B59B1 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.2% C 0.149 H 261.8°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#2B59B1
RGB	rgb(43, 89, 177)
HSL	hsl(219, 61%, 43%)
HSV	hsv(219, 76%, 69%)
CMYK	cmyk(75.7%, 49.7%, 0%, 30.6%)
CIE-LAB	lab(39.29, 15.94, -51.42)
CIE-LCH	lch(39.29, 53.83, 287.22°)
OKLab	oklab(48.2% -0.0213 -0.1478)
OKLCH	oklch(48.2% 0.149 261.8)
XYZ	xyz(12.5016, 10.8313, 43.0182)
Luminance	0.1083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B59B1 #B1832B

analogous

#2B9CB1 #2B59B1 #402BB1

triadic

#2B59B1 #B12B59 #59B12B

tetradic

#2B59B1 #B12B9C #B1832B #2BB140

square

#2B59B1 #B12B9C #B1832B #2BB140

split-complementary

#2B59B1 #B1402B #9CB12B

monochromatic

#13274F #1F4080 #2B59B1 #4777D2 #789BDE

Accessibility & contrast

On white

6.63

#2B59B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#2B59B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B59B1

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B59B1	#FFFFFF	#000000	##FFFFFF
##2B59B1	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2563B4

Deuteranopia (green-blind)

#0057AF

Tritanopia (blue-blind)

#006E7C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2b59b1;
/* rgb */ color: rgb(43, 89, 177);
/* oklch */ color: oklch(48.2% 0.149 261.8);

Tailwind

colors: {
  custom: {
    50: '#7787c9',
    500: '#2b59b1',
    950: '#000000',
  },
}

SCSS

$custom: #2b59b1;
$custom-light: #7787c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b59b1",
  "rgb": {
    "r": 43,
    "g": 89,
    "b": 177
  },
  "hsl": {
    "h": 219.403,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.48202,
    "c": 0.14931,
    "h": 261.8
  },
  "luminance": 0.10833
}

Semantic roles & 50–950 ramp

primary

#2B59B1

secondary

#C6A972

accent

#AD44E4

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2B59B1

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

Preview Lab → · Contrast checker → · Palette generator →