#2B397F#2B397F

#2B397F is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.5% C 0.119 H 271.0°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#2B397F
RGB	rgb(43, 57, 127)
HSL	hsl(230, 49%, 33%)
HSV	hsv(230, 66%, 50%)
CMYK	cmyk(66.1%, 55.1%, 0%, 50.2%)
CIE-LAB	lab(26.65, 18.38, -41.46)
CIE-LCH	lch(26.65, 45.36, 293.91°)
OKLab	oklab(37.47% 0.0022 -0.119)
OKLCH	oklch(37.47% 0.119 271)
XYZ	xyz(6.2889, 4.9716, 20.7028)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B397F #7F712B

analogous

#2B637F #2B397F #472B7F

triadic

#2B397F #7F2B39 #397F2B

tetradic

#2B397F #7F2B63 #7F712B #2B7F47

square

#2B397F #7F2B63 #7F712B #2B7F47

split-complementary

#2B397F #7F472B #637F2B

monochromatic

#0C1024 #1C2451 #2B397F #3A4EAD #5C6EC8

Accessibility & contrast

On white

10.53

#2B397F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#2B397F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B397F

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B397F	#FFFFFF	#000000	##FFFFFF
##2B397F	1.00	10.53	1.99	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4381

Deuteranopia (green-blind)

#003B7E

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2b397f;
/* rgb */ color: rgb(43, 57, 127);
/* oklch */ color: oklch(37.5% 0.119 271.0);

Tailwind

colors: {
  custom: {
    50: '#6e6fa5',
    500: '#2b397f',
    950: '#000000',
  },
}

SCSS

$custom: #2b397f;
$custom-light: #6e6fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b397f",
  "rgb": {
    "r": 43,
    "g": 57,
    "b": 127
  },
  "hsl": {
    "h": 230,
    "s": 49.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.37468,
    "c": 0.11904,
    "h": 271
  },
  "luminance": 0.04972
}

Semantic roles & 50–950 ramp

primary

#2B397F

secondary

#AEA058

accent

#C24FD9

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2B397F

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

Preview Lab → · Contrast checker → · Palette generator →