#2B3D83#2B3D83

#2B3D83 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.6% C 0.120 H 269.3°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#2B3D83
RGB	rgb(43, 61, 131)
HSL	hsl(228, 51%, 34%)
HSV	hsv(228, 67%, 51%)
CMYK	cmyk(67.2%, 53.4%, 0%, 48.6%)
CIE-LAB	lab(28.09, 17.14, -41.65)
CIE-LCH	lch(28.09, 45.04, 292.37°)
OKLab	oklab(38.64% -0.0015 -0.1195)
OKLCH	oklch(38.64% 0.12 269.3)
XYZ	xyz(6.7603, 5.4892, 22.1716)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3D83 #83712B

analogous

#2B6983 #2B3D83 #452B83

triadic

#2B3D83 #832B3D #3D832B

tetradic

#2B3D83 #832B69 #83712B #2B8345

square

#2B3D83 #832B69 #83712B #2B8345

split-complementary

#2B3D83 #83452B #69832B

monochromatic

#0D1227 #1C2855 #2B3D83 #3A52B1 #5E74CA

Accessibility & contrast

On white

10.01

#2B3D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2B3D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3D83

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3D83	#FFFFFF	#000000	##FFFFFF
##2B3D83	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134685

Deuteranopia (green-blind)

#003E82

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2b3d83;
/* rgb */ color: rgb(43, 61, 131);
/* oklch */ color: oklch(38.6% 0.120 269.3);

Tailwind

colors: {
  custom: {
    50: '#6f72a8',
    500: '#2b3d83',
    950: '#000000',
  },
}

SCSS

$custom: #2b3d83;
$custom-light: #6f72a8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3d83",
  "rgb": {
    "r": 43,
    "g": 61,
    "b": 131
  },
  "hsl": {
    "h": 227.727,
    "s": 50.575,
    "l": 34.118
  },
  "oklch": {
    "l": 0.38641,
    "c": 0.11953,
    "h": 269.3
  },
  "luminance": 0.0549
}

Semantic roles & 50–950 ramp

primary

#2B3D83

secondary

#B09E5A

accent

#BD4EDA

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2B3D83

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

Preview Lab → · Contrast checker → · Palette generator →