#2A387D#2A387D

#2A387D is a dark, moderate blue. Relative luminance 0.048; OKLCH L 37.0% C 0.118 H 270.9°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#2A387D
RGB	rgb(42, 56, 125)
HSL	hsl(230, 50%, 33%)
HSV	hsv(230, 66%, 49%)
CMYK	cmyk(66.4%, 55.2%, 0%, 51%)
CIE-LAB	lab(26.16, 18.13, -41.01)
CIE-LCH	lch(26.16, 44.84, 293.85°)
OKLab	oklab(37.03% 0.0019 -0.1177)
OKLCH	oklch(37.03% 0.118 270.9)
XYZ	xyz(6.0694, 4.8007, 20.0048)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A387D #7D6F2A

analogous

#2A617D #2A387D #462A7D

triadic

#2A387D #7D2A38 #387D2A

tetradic

#2A387D #7D2A61 #7D6F2A #2A7D46

square

#2A387D #7D2A61 #7D6F2A #2A7D46

split-complementary

#2A387D #7D462A #617D2A

monochromatic

#0B0F21 #1B234F #2A387D #394DAB #5A6CC8

Accessibility & contrast

On white

10.71

#2A387D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#2A387D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A387D

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A387D	#FFFFFF	#000000	##FFFFFF
##2A387D	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A427F

Deuteranopia (green-blind)

#003A7C

Tritanopia (blue-blind)

#004855

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2a387d;
/* rgb */ color: rgb(42, 56, 125);
/* oklch */ color: oklch(37.0% 0.118 270.9);

Tailwind

colors: {
  custom: {
    50: '#6d6ea3',
    500: '#2a387d',
    950: '#000000',
  },
}

SCSS

$custom: #2a387d;
$custom-light: #6d6ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#2a387d",
  "rgb": {
    "r": 42,
    "g": 56,
    "b": 125
  },
  "hsl": {
    "h": 229.88,
    "s": 49.701,
    "l": 32.745
  },
  "oklch": {
    "l": 0.37031,
    "c": 0.11774,
    "h": 270.9
  },
  "luminance": 0.04801
}

Semantic roles & 50–950 ramp

primary

#2A387D

secondary

#AD9E56

accent

#C24FD9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #2A387D

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

Preview Lab → · Contrast checker → · Palette generator →