#2F428C#2F428C

#2F428C is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.6% C 0.125 H 269.3°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#2F428C
RGB	rgb(47, 66, 140)
HSL	hsl(228, 50%, 37%)
HSV	hsv(228, 66%, 55%)
CMYK	cmyk(66.4%, 52.9%, 0%, 45.1%)
CIE-LAB	lab(30.38, 17.84, -43.51)
CIE-LCH	lch(30.38, 47.02, 292.29°)
OKLab	oklab(40.65% -0.0015 -0.1248)
OKLCH	oklch(40.65% 0.125 269.3)
XYZ	xyz(7.8525, 6.3935, 25.6261)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F428C #8C792F

analogous

#2F718C #2F428C #4B2F8C

triadic

#2F428C #8C2F42 #428C2F

tetradic

#2F428C #8C2F71 #8C792F #2F8C4B

square

#2F428C #8C2F71 #8C792F #2F8C4B

split-complementary

#2F428C #8C4B2F #718C2F

monochromatic

#101730 #202C5E #2F428C #3E58BA #697DCD

Accessibility & contrast

On white

9.22

#2F428C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#2F428C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F428C

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F428C	#FFFFFF	#000000	##FFFFFF
##2F428C	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164C8F

Deuteranopia (green-blind)

#00448A

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f428c;
/* rgb */ color: rgb(47, 66, 140);
/* oklch */ color: oklch(40.6% 0.125 269.3);

Tailwind

colors: {
  custom: {
    50: '#7276ae',
    500: '#2f428c',
    950: '#000000',
  },
}

SCSS

$custom: #2f428c;
$custom-light: #7276ae;
$custom-dark: #000000;

JSON

{
  "hex": "#2f428c",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 140
  },
  "hsl": {
    "h": 227.742,
    "s": 49.733,
    "l": 36.667
  },
  "oklch": {
    "l": 0.40649,
    "c": 0.12482,
    "h": 269.3
  },
  "luminance": 0.06394
}

Semantic roles & 50–950 ramp

primary

#2F428C

secondary

#B4A363

accent

#BD4FD9

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #2F428C

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

Preview Lab → · Contrast checker → · Palette generator →