#2F428D#2F428D

#2F428D is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.7% C 0.126 H 269.4°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#2F428D
RGB	rgb(47, 66, 141)
HSL	hsl(228, 50%, 37%)
HSV	hsv(228, 67%, 55%)
CMYK	cmyk(66.7%, 53.2%, 0%, 44.7%)
CIE-LAB	lab(30.46, 18.21, -44.01)
CIE-LCH	lch(30.46, 47.63, 292.48°)
OKLab	oklab(40.73% -0.0014 -0.1263)
OKLCH	oklch(40.73% 0.126 269.4)
XYZ	xyz(7.9266, 6.4231, 26.0162)
Luminance	0.0642 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F428D #8D7A2F

analogous

#2F718D #2F428D #4B2F8D

triadic

#2F428D #8D2F42 #428D2F

tetradic

#2F428D #8D2F71 #8D7A2F #2F8D4B

square

#2F428D #8D2F71 #8D7A2F #2F8D4B

split-complementary

#2F428D #8D4B2F #718D2F

monochromatic

#101731 #202D5F #2F428D #3E57BB #697DCD

Accessibility & contrast

On white

9.19

#2F428D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#2F428D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F428D

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F428D	#FFFFFF	#000000	##FFFFFF
##2F428D	1.00	9.19	2.28	9.19
#FFFFFF	9.19	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144C90

Deuteranopia (green-blind)

#00448B

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f428d;
/* rgb */ color: rgb(47, 66, 141);
/* oklch */ color: oklch(40.7% 0.126 269.4);

Tailwind

colors: {
  custom: {
    50: '#7276af',
    500: '#2f428d',
    950: '#000000',
  },
}

SCSS

$custom: #2f428d;
$custom-light: #7276af;
$custom-dark: #000000;

JSON

{
  "hex": "#2f428d",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 141
  },
  "hsl": {
    "h": 227.872,
    "s": 50,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40726,
    "c": 0.1263,
    "h": 269.4
  },
  "luminance": 0.06424
}

Semantic roles & 50–950 ramp

primary

#2F428D

secondary

#B4A464

accent

#BD4EDA

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #2F428D

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

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