#2A3F90#2A3F90

#2A3F90 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.0% C 0.136 H 268.6°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#2A3F90
RGB	rgb(42, 63, 144)
HSL	hsl(228, 55%, 36%)
HSV	hsv(228, 71%, 56%)
CMYK	cmyk(70.8%, 56.3%, 0%, 43.5%)
CIE-LAB	lab(29.56, 20.56, -47.31)
CIE-LCH	lch(29.56, 51.58, 293.49°)
OKLab	oklab(40.05% -0.0034 -0.1362)
OKLCH	oklch(40.05% 0.136 268.6)
XYZ	xyz(7.7647, 6.0601, 27.1407)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3F90 #907B2A

analogous

#2A7290 #2A3F90 #482A90

triadic

#2A3F90 #902A3F #3F902A

tetradic

#2A3F90 #902A72 #907B2A #2A9048

square

#2A3F90 #902A72 #907B2A #2A9048

split-complementary

#2A3F90 #90482A #72902A

monochromatic

#0E1631 #1C2A61 #2A3F90 #3854BF #637AD1

Accessibility & contrast

On white

9.49

#2A3F90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#2A3F90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3F90

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3F90	#FFFFFF	#000000	##FFFFFF
##2A3F90	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A93

Deuteranopia (green-blind)

#00418E

Tritanopia (blue-blind)

#005361

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2a3f90;
/* rgb */ color: rgb(42, 63, 144);
/* oklch */ color: oklch(40.0% 0.136 268.6);

Tailwind

colors: {
  custom: {
    50: '#7173b1',
    500: '#2a3f90',
    950: '#000000',
  },
}

SCSS

$custom: #2a3f90;
$custom-light: #7173b1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3f90",
  "rgb": {
    "r": 42,
    "g": 63,
    "b": 144
  },
  "hsl": {
    "h": 227.647,
    "s": 54.839,
    "l": 36.471
  },
  "oklch": {
    "l": 0.40049,
    "c": 0.1362,
    "h": 268.6
  },
  "luminance": 0.06061
}

Semantic roles & 50–950 ramp

primary

#2A3F90

secondary

#B7A55E

accent

#C04ADE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #2A3F90

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

Preview Lab → · Contrast checker → · Palette generator →