#2B3C81#2B3C81

#2B3C81 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.3% C 0.118 H 269.7°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#2B3C81
RGB	rgb(43, 60, 129)
HSL	hsl(228, 50%, 34%)
HSV	hsv(228, 67%, 51%)
CMYK	cmyk(66.7%, 53.5%, 0%, 49.4%)
CIE-LAB	lab(27.65, 17.07, -41.10)
CIE-LCH	lch(27.65, 44.51, 292.55°)
OKLab	oklab(38.27% -0.0007 -0.1179)
OKLCH	oklch(38.27% 0.118 269.7)
XYZ	xyz(6.5732, 5.3297, 21.4470)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3C81 #81702B

analogous

#2B6781 #2B3C81 #452B81

triadic

#2B3C81 #812B3C #3C812B

tetradic

#2B3C81 #812B67 #81702B #2B8145

square

#2B3C81 #812B67 #81702B #2B8145

split-complementary

#2B3C81 #81452B #67812B

monochromatic

#0C1125 #1C2753 #2B3C81 #3A51AF #5D73C9

Accessibility & contrast

On white

10.16

#2B3C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#2B3C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3C81

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3C81	#FFFFFF	#000000	##FFFFFF
##2B3C81	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#124583

Deuteranopia (green-blind)

#003E80

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2b3c81;
/* rgb */ color: rgb(43, 60, 129);
/* oklch */ color: oklch(38.3% 0.118 269.7);

Tailwind

colors: {
  custom: {
    50: '#6e71a6',
    500: '#2b3c81',
    950: '#000000',
  },
}

SCSS

$custom: #2b3c81;
$custom-light: #6e71a6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3c81",
  "rgb": {
    "r": 43,
    "g": 60,
    "b": 129
  },
  "hsl": {
    "h": 228.14,
    "s": 50,
    "l": 33.725
  },
  "oklch": {
    "l": 0.38269,
    "c": 0.11791,
    "h": 269.7
  },
  "luminance": 0.0533
}

Semantic roles & 50–950 ramp

primary

#2B3C81

secondary

#AF9E59

accent

#BE4EDA

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2B3C81

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

Preview Lab → · Contrast checker → · Palette generator →