#2B57A1#2B57A1

#2B57A1 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 46.6% C 0.130 H 260.2°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#2B57A1
RGB	rgb(43, 87, 161)
HSL	hsl(218, 58%, 40%)
HSV	hsv(218, 73%, 63%)
CMYK	cmyk(73.3%, 46%, 0%, 36.9%)
CIE-LAB	lab(37.67, 11.12, -44.54)
CIE-LCH	lch(37.67, 45.91, 284.02°)
OKLab	oklab(46.61% -0.0221 -0.1276)
OKLCH	oklch(46.61% 0.13 260.2)
XYZ	xyz(10.8352, 9.9020, 35.0515)
Luminance	0.0990 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B57A1 #A1752B

analogous

#2B92A1 #2B57A1 #3A2BA1

triadic

#2B57A1 #A12B57 #57A12B

tetradic

#2B57A1 #A12B92 #A1752B #2BA13A

square

#2B57A1 #A12B92 #A1752B #2BA13A

split-complementary

#2B57A1 #A13A2B #92A12B

monochromatic

#112340 #1E3D71 #2B57A1 #3E73CB #6E96D8

Accessibility & contrast

On white

7.05

#2B57A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#2B57A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B57A1

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B57A1	#FFFFFF	#000000	##FFFFFF
##2B57A1	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315EA4

Deuteranopia (green-blind)

#1954A0

Tritanopia (blue-blind)

#006874

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2b57a1;
/* rgb */ color: rgb(43, 87, 161);
/* oklch */ color: oklch(46.6% 0.130 260.2);

Tailwind

colors: {
  custom: {
    50: '#7485bd',
    500: '#2b57a1',
    950: '#000000',
  },
}

SCSS

$custom: #2b57a1;
$custom-light: #7485bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2b57a1",
  "rgb": {
    "r": 43,
    "g": 87,
    "b": 161
  },
  "hsl": {
    "h": 217.627,
    "s": 57.843,
    "l": 40
  },
  "oklch": {
    "l": 0.46613,
    "c": 0.1295,
    "h": 260.2
  },
  "luminance": 0.09903
}

Semantic roles & 50–950 ramp

primary

#2B57A1

secondary

#BF9F69

accent

#A847E1

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2B57A1

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

Preview Lab → · Contrast checker → · Palette generator →