#2B3D81#2B3D81

#2B3D81 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.5% C 0.117 H 269.2°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#2B3D81
RGB	rgb(43, 61, 129)
HSL	hsl(227, 50%, 34%)
HSV	hsv(227, 67%, 51%)
CMYK	cmyk(66.7%, 52.7%, 0%, 49.4%)
CIE-LAB	lab(27.94, 16.38, -40.64)
CIE-LCH	lch(27.94, 43.82, 291.95°)
OKLab	oklab(38.49% -0.0017 -0.1165)
OKLCH	oklch(38.49% 0.117 269.2)
XYZ	xyz(6.6261, 5.4355, 21.4646)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3D81 #816F2B

analogous

#2B6881 #2B3D81 #442B81

triadic

#2B3D81 #812B3D #3D812B

tetradic

#2B3D81 #812B68 #816F2B #2B8144

square

#2B3D81 #812B68 #816F2B #2B8144

split-complementary

#2B3D81 #81442B #68812B

monochromatic

#0C1225 #1C2753 #2B3D81 #3A53AF #5D74C9

Accessibility & contrast

On white

10.06

#2B3D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#2B3D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3D81

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3D81	#FFFFFF	#000000	##FFFFFF
##2B3D81	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164683

Deuteranopia (green-blind)

#003E80

Tritanopia (blue-blind)

#004D59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2b3d81;
/* rgb */ color: rgb(43, 61, 129);
/* oklch */ color: oklch(38.5% 0.117 269.2);

Tailwind

colors: {
  custom: {
    50: '#6e72a6',
    500: '#2b3d81',
    950: '#000000',
  },
}

SCSS

$custom: #2b3d81;
$custom-light: #6e72a6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3d81",
  "rgb": {
    "r": 43,
    "g": 61,
    "b": 129
  },
  "hsl": {
    "h": 227.442,
    "s": 50,
    "l": 33.725
  },
  "oklch": {
    "l": 0.38486,
    "c": 0.11654,
    "h": 269.2
  },
  "luminance": 0.05436
}

Semantic roles & 50–950 ramp

primary

#2B3D81

secondary

#AF9D59

accent

#BC4EDA

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2B3D81

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

Preview Lab → · Contrast checker → · Palette generator →