#2A539B#2A539B

#2A539B is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.2% C 0.126 H 260.8°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#2A539B
RGB	rgb(42, 83, 155)
HSL	hsl(218, 57%, 39%)
HSV	hsv(218, 73%, 61%)
CMYK	cmyk(72.9%, 46.5%, 0%, 39.2%)
CIE-LAB	lab(36.07, 11.31, -43.51)
CIE-LCH	lch(36.07, 44.95, 284.57°)
OKLab	oklab(45.25% -0.0203 -0.1246)
OKLCH	oklch(45.25% 0.126 260.8)
XYZ	xyz(9.9624, 9.0442, 32.2247)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A539B #9B722A

analogous

#2A8B9B #2A539B #392A9B

triadic

#2A539B #9B2A53 #539B2A

tetradic

#2A539B #9B2A8B #9B722A #2A9B39

square

#2A539B #9B2A8B #9B722A #2A9B39

split-complementary

#2A539B #9B392A #8B9B2A

monochromatic

#101F3B #1D396B #2A539B #396DC9 #6991D6

Accessibility & contrast

On white

7.48

#2A539B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#2A539B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A539B

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A539B	#FFFFFF	#000000	##FFFFFF
##2A539B	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5A9E

Deuteranopia (green-blind)

#16509A

Tritanopia (blue-blind)

#00646F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #2a539b;
/* rgb */ color: rgb(42, 83, 155);
/* oklch */ color: oklch(45.2% 0.126 260.8);

Tailwind

colors: {
  custom: {
    50: '#7282b9',
    500: '#2a539b',
    950: '#000000',
  },
}

SCSS

$custom: #2a539b;
$custom-light: #7282b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a539b",
  "rgb": {
    "r": 42,
    "g": 83,
    "b": 155
  },
  "hsl": {
    "h": 218.23,
    "s": 57.36,
    "l": 38.627
  },
  "oklch": {
    "l": 0.45249,
    "c": 0.12627,
    "h": 260.8
  },
  "luminance": 0.09045
}

Semantic roles & 50–950 ramp

primary

#2A539B

secondary

#BD9D64

accent

#A947E1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #2A539B

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

Preview Lab → · Contrast checker → · Palette generator →