#2B3A90#2B3A90

#2B3A90 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.1% C 0.142 H 270.8°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#2B3A90
RGB	rgb(43, 58, 144)
HSL	hsl(231, 54%, 37%)
HSV	hsv(231, 70%, 56%)
CMYK	cmyk(70.1%, 59.7%, 0%, 43.5%)
CIE-LAB	lab(28.25, 24.10, -49.43)
CIE-LCH	lch(28.25, 55.00, 295.99°)
OKLab	oklab(39.09% 0.002 -0.1424)
OKLCH	oklch(39.09% 0.142 270.8)
XYZ	xyz(7.5417, 5.5526, 27.0545)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3A90 #90812B

analogous

#2B6D90 #2B3A90 #4F2B90

triadic

#2B3A90 #902B3A #3A902B

tetradic

#2B3A90 #902B6D #90812B #2B904F

square

#2B3A90 #902B6D #90812B #2B904F

split-complementary

#2B3A90 #904F2B #6D902B

monochromatic

#0F1432 #1D2761 #2B3A90 #394DBF #6575D1

Accessibility & contrast

On white

9.95

#2B3A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#2B3A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3A90

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3A90	#FFFFFF	#000000	##FFFFFF
##2B3A90	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004793

Deuteranopia (green-blind)

#003E8E

Tritanopia (blue-blind)

#004F5F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2b3a90;
/* rgb */ color: rgb(43, 58, 144);
/* oklch */ color: oklch(39.1% 0.142 270.8);

Tailwind

colors: {
  custom: {
    50: '#7270b1',
    500: '#2b3a90',
    950: '#000000',
  },
}

SCSS

$custom: #2b3a90;
$custom-light: #7270b1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3a90",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 144
  },
  "hsl": {
    "h": 231.089,
    "s": 54.011,
    "l": 36.667
  },
  "oklch": {
    "l": 0.39085,
    "c": 0.14246,
    "h": 270.8
  },
  "luminance": 0.05553
}

Semantic roles & 50–950 ramp

primary

#2B3A90

secondary

#B7AA60

accent

#C84ADD

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2B3A90

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

Preview Lab → · Contrast checker → · Palette generator →