#2A3F71#2A3F71

#2A3F71 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.090 H 265.2°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#2A3F71
RGB	rgb(42, 63, 113)
HSL	hsl(222, 46%, 30%)
HSV	hsv(222, 63%, 44%)
CMYK	cmyk(62.8%, 44.2%, 0%, 55.7%)
CIE-LAB	lab(27.41, 8.76, -31.42)
CIE-LCH	lch(27.41, 32.62, 285.57°)
OKLab	oklab(37.72% -0.0075 -0.0894)
OKLCH	oklch(37.72% 0.09 265.2)
XYZ	xyz(5.7120, 5.2390, 16.3298)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3F71 #715C2A

analogous

#2A6271 #2A3F71 #392A71

triadic

#2A3F71 #712A3F #3F712A

tetradic

#2A3F71 #712A62 #715C2A #2A7139

square

#2A3F71 #712A62 #715C2A #2A7139

split-complementary

#2A3F71 #71392A #62712A

monochromatic

#090D18 #192644 #2A3F71 #3B589E #5575C0

Accessibility & contrast

On white

10.25

#2A3F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2A3F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3F71

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3F71	#FFFFFF	#000000	##FFFFFF
##2A3F71	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294473

Deuteranopia (green-blind)

#1F3E70

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2a3f71;
/* rgb */ color: rgb(42, 63, 113);
/* oklch */ color: oklch(37.7% 0.090 265.2);

Tailwind

colors: {
  custom: {
    50: '#6b739a',
    500: '#2a3f71',
    950: '#000000',
  },
}

SCSS

$custom: #2a3f71;
$custom-light: #6b739a;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3f71",
  "rgb": {
    "r": 42,
    "g": 63,
    "b": 113
  },
  "hsl": {
    "h": 222.254,
    "s": 45.806,
    "l": 30.392
  },
  "oklch": {
    "l": 0.37717,
    "c": 0.08975,
    "h": 265.2
  },
  "luminance": 0.0524
}

Semantic roles & 50–950 ramp

primary

#2A3F71

secondary

#A38C54

accent

#AF52D5

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #2A3F71

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

Preview Lab → · Contrast checker → · Palette generator →