#2A3589#2A3589

#2A3589 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.4% C 0.139 H 272.1°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#2A3589
RGB	rgb(42, 53, 137)
HSL	hsl(233, 53%, 35%)
HSV	hsv(233, 69%, 54%)
CMYK	cmyk(69.3%, 61.3%, 0%, 46.3%)
CIE-LAB	lab(26.29, 24.71, -48.31)
CIE-LCH	lch(26.29, 54.26, 297.09°)
OKLab	oklab(37.43% 0.0051 -0.1392)
OKLCH	oklch(37.43% 0.139 272.1)
XYZ	xyz(6.7418, 4.8440, 24.2417)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3589 #897E2A

analogous

#2A6489 #2A3589 #4F2A89

triadic

#2A3589 #892A35 #35892A

tetradic

#2A3589 #892A64 #897E2A #2A894F

square

#2A3589 #892A64 #897E2A #2A894F

split-complementary

#2A3589 #894F2A #64892A

monochromatic

#0D112B #1C235A #2A3589 #3847B8 #5F6CCE

Accessibility & contrast

On white

10.67

#2A3589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#2A3589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3589

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3589	#FFFFFF	#000000	##FFFFFF
##2A3589	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438C

Deuteranopia (green-blind)

#003A87

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2a3589;
/* rgb */ color: rgb(42, 53, 137);
/* oklch */ color: oklch(37.4% 0.139 272.1);

Tailwind

colors: {
  custom: {
    50: '#706cac',
    500: '#2a3589',
    950: '#000000',
  },
}

SCSS

$custom: #2a3589;
$custom-light: #706cac;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3589",
  "rgb": {
    "r": 42,
    "g": 53,
    "b": 137
  },
  "hsl": {
    "h": 233.053,
    "s": 53.073,
    "l": 35.098
  },
  "oklch": {
    "l": 0.37425,
    "c": 0.13932,
    "h": 272.1
  },
  "luminance": 0.04845
}

Semantic roles & 50–950 ramp

primary

#2A3589

secondary

#B4AA5B

accent

#CC4BDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #2A3589

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

Preview Lab → · Contrast checker → · Palette generator →