#2A3F73#2A3F73

#2A3F73 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.9% C 0.093 H 265.6°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#2A3F73
RGB	rgb(42, 63, 115)
HSL	hsl(223, 46%, 31%)
HSV	hsv(223, 63%, 45%)
CMYK	cmyk(63.5%, 45.2%, 0%, 54.9%)
CIE-LAB	lab(27.53, 9.51, -32.49)
CIE-LCH	lch(27.53, 33.85, 286.31°)
OKLab	oklab(37.85% -0.0071 -0.0926)
OKLCH	oklch(37.85% 0.093 265.6)
XYZ	xyz(5.8258, 5.2846, 16.9293)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3F73 #735E2A

analogous

#2A6373 #2A3F73 #392A73

triadic

#2A3F73 #732A3F #3F732A

tetradic

#2A3F73 #732A63 #735E2A #2A7339

square

#2A3F73 #732A63 #735E2A #2A7339

split-complementary

#2A3F73 #73392A #63732A

monochromatic

#090E19 #1A2646 #2A3F73 #3A58A0 #5675C1

Accessibility & contrast

On white

10.21

#2A3F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#2A3F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3F73

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3F73	#FFFFFF	#000000	##FFFFFF
##2A3F73	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274575

Deuteranopia (green-blind)

#1D3E72

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2a3f73;
/* rgb */ color: rgb(42, 63, 115);
/* oklch */ color: oklch(37.9% 0.093 265.6);

Tailwind

colors: {
  custom: {
    50: '#6b739b',
    500: '#2a3f73',
    950: '#000000',
  },
}

SCSS

$custom: #2a3f73;
$custom-light: #6b739b;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3f73",
  "rgb": {
    "r": 42,
    "g": 63,
    "b": 115
  },
  "hsl": {
    "h": 222.74,
    "s": 46.497,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37854,
    "c": 0.09285,
    "h": 265.6
  },
  "luminance": 0.05285
}

Semantic roles & 50–950 ramp

primary

#2A3F73

secondary

#A58E54

accent

#B052D6

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #2A3F73

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

Preview Lab → · Contrast checker → · Palette generator →