#2F428F#2F428F

#2F428F is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.9% C 0.129 H 269.5°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#2F428F
RGB	rgb(47, 66, 143)
HSL	hsl(228, 51%, 37%)
HSV	hsv(228, 67%, 56%)
CMYK	cmyk(67.1%, 53.8%, 0%, 43.9%)
CIE-LAB	lab(30.60, 18.96, -45.01)
CIE-LCH	lch(30.60, 48.84, 292.84°)
OKLab	oklab(40.88% -0.0012 -0.1292)
OKLCH	oklch(40.88% 0.129 269.5)
XYZ	xyz(8.0767, 6.4832, 26.8070)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F428F #8F7C2F

analogous

#2F728F #2F428F #4C2F8F

triadic

#2F428F #8F2F42 #428F2F

tetradic

#2F428F #8F2F72 #8F7C2F #2F8F4C

square

#2F428F #8F2F72 #8F7C2F #2F8F4C

split-complementary

#2F428F #8F4C2F #728F2F

monochromatic

#111733 #202D61 #2F428F #3E57BD #6A7ECE

Accessibility & contrast

On white

9.14

#2F428F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#2F428F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F428F

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F428F	#FFFFFF	#000000	##FFFFFF
##2F428F	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#114D92

Deuteranopia (green-blind)

#00448D

Tritanopia (blue-blind)

#005462

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f428f;
/* rgb */ color: rgb(47, 66, 143);
/* oklch */ color: oklch(40.9% 0.129 269.5);

Tailwind

colors: {
  custom: {
    50: '#7376b0',
    500: '#2f428f',
    950: '#000000',
  },
}

SCSS

$custom: #2f428f;
$custom-light: #7376b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f428f",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 143
  },
  "hsl": {
    "h": 228.125,
    "s": 50.526,
    "l": 37.255
  },
  "oklch": {
    "l": 0.40881,
    "c": 0.12923,
    "h": 269.5
  },
  "luminance": 0.06484
}

Semantic roles & 50–950 ramp

primary

#2F428F

secondary

#B5A565

accent

#BE4EDA

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090811

muted

#7B7B80

Preview Lab

Preview with #2F428F

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

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