#2B3F84#2B3F84

#2B3F84 is a dark, moderate blue. Relative luminance 0.057; OKLCH L 39.2% C 0.118 H 268.3°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#2B3F84
RGB	rgb(43, 63, 132)
HSL	hsl(227, 51%, 34%)
HSV	hsv(227, 67%, 52%)
CMYK	cmyk(67.4%, 52.3%, 0%, 48.2%)
CIE-LAB	lab(28.73, 16.15, -41.24)
CIE-LCH	lch(28.73, 44.29, 291.39°)
OKLab	oklab(39.15% -0.0034 -0.1183)
OKLCH	oklch(39.15% 0.118 268.3)
XYZ	xyz(6.9372, 5.7339, 22.5665)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3F84 #84702B

analogous

#2B6C84 #2B3F84 #442B84

triadic

#2B3F84 #842B3F #3F842B

tetradic

#2B3F84 #842B6C #84702B #2B8444

square

#2B3F84 #842B6C #84702B #2B8444

split-complementary

#2B3F84 #84442B #6C842B

monochromatic

#0D1328 #1C2956 #2B3F84 #3A55B2 #5F77CB

Accessibility & contrast

On white

9.78

#2B3F84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2B3F84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3F84

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3F84	#FFFFFF	#000000	##FFFFFF
##2B3F84	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174886

Deuteranopia (green-blind)

#004083

Tritanopia (blue-blind)

#004F5B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b3f84;
/* rgb */ color: rgb(43, 63, 132);
/* oklch */ color: oklch(39.2% 0.118 268.3);

Tailwind

colors: {
  custom: {
    50: '#6f73a8',
    500: '#2b3f84',
    950: '#000000',
  },
}

SCSS

$custom: #2b3f84;
$custom-light: #6f73a8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3f84",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 132
  },
  "hsl": {
    "h": 226.517,
    "s": 50.857,
    "l": 34.314
  },
  "oklch": {
    "l": 0.39153,
    "c": 0.11831,
    "h": 268.3
  },
  "luminance": 0.05735
}

Semantic roles & 50–950 ramp

primary

#2B3F84

secondary

#B19D5A

accent

#BB4DDA

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2B3F84

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

Preview Lab → · Contrast checker → · Palette generator →