#2B437F#2B437F

#2B437F is a dark, moderate blue. Relative luminance 0.061; OKLCH L 39.7% C 0.105 H 265.5°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#2B437F
RGB	rgb(43, 67, 127)
HSL	hsl(223, 49%, 33%)
HSV	hsv(223, 66%, 50%)
CMYK	cmyk(66.1%, 47.2%, 0%, 50.2%)
CIE-LAB	lab(29.56, 11.51, -36.78)
CIE-LCH	lch(29.56, 38.54, 287.38°)
OKLab	oklab(39.68% -0.0083 -0.1051)
OKLCH	oklch(39.68% 0.105 265.5)
XYZ	xyz(6.8329, 6.0596, 20.8841)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B437F #7F672B

analogous

#2B6D7F #2B437F #3D2B7F

triadic

#2B437F #7F2B43 #437F2B

tetradic

#2B437F #7F2B6D #7F672B #2B7F3D

square

#2B437F #7F2B6D #7F672B #2B7F3D

split-complementary

#2B437F #7F3D2B #6D7F2B

monochromatic

#0C1324 #1C2B51 #2B437F #3A5BAD #5C7BC8

Accessibility & contrast

On white

9.49

#2B437F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#2B437F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B437F

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B437F	#FFFFFF	#000000	##FFFFFF
##2B437F	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264A81

Deuteranopia (green-blind)

#17427E

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2b437f;
/* rgb */ color: rgb(43, 67, 127);
/* oklch */ color: oklch(39.7% 0.105 265.5);

Tailwind

colors: {
  custom: {
    50: '#6e76a4',
    500: '#2b437f',
    950: '#000000',
  },
}

SCSS

$custom: #2b437f;
$custom-light: #6e76a4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b437f",
  "rgb": {
    "r": 43,
    "g": 67,
    "b": 127
  },
  "hsl": {
    "h": 222.857,
    "s": 49.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.39678,
    "c": 0.10544,
    "h": 265.5
  },
  "luminance": 0.0606
}

Semantic roles & 50–950 ramp

primary

#2B437F

secondary

#AE9558

accent

#B14FD9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #2B437F

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

Preview Lab → · Contrast checker → · Palette generator →