#2F428E#2F428E

#2F428E is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.8% C 0.128 H 269.4°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#2F428E
RGB	rgb(47, 66, 142)
HSL	hsl(228, 50%, 37%)
HSV	hsv(228, 67%, 56%)
CMYK	cmyk(66.9%, 53.5%, 0%, 44.3%)
CIE-LAB	lab(30.53, 18.58, -44.51)
CIE-LCH	lch(30.53, 48.23, 292.66°)
OKLab	oklab(40.8% -0.0013 -0.1277)
OKLCH	oklch(40.8% 0.128 269.4)
XYZ	xyz(8.0013, 6.4530, 26.4098)
Luminance	0.0645 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F428E #8E7B2F

analogous

#2F728E #2F428E #4C2F8E

triadic

#2F428E #8E2F42 #428E2F

tetradic

#2F428E #8E2F72 #8E7B2F #2F8E4C

square

#2F428E #8E2F72 #8E7B2F #2F8E4C

split-complementary

#2F428E #8E4C2F #728E2F

monochromatic

#111732 #202D60 #2F428E #3E57BC #6A7ECE

Accessibility & contrast

On white

9.17

#2F428E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#2F428E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F428E

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F428E	#FFFFFF	#000000	##FFFFFF
##2F428E	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#124C91

Deuteranopia (green-blind)

#00448C

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f428e;
/* rgb */ color: rgb(47, 66, 142);
/* oklch */ color: oklch(40.8% 0.128 269.4);

Tailwind

colors: {
  custom: {
    50: '#7376b0',
    500: '#2f428e',
    950: '#000000',
  },
}

SCSS

$custom: #2f428e;
$custom-light: #7376b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f428e",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 142
  },
  "hsl": {
    "h": 228,
    "s": 50.265,
    "l": 37.059
  },
  "oklch": {
    "l": 0.40803,
    "c": 0.12776,
    "h": 269.4
  },
  "luminance": 0.06454
}

Semantic roles & 50–950 ramp

primary

#2F428E

secondary

#B5A564

accent

#BE4EDA

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #2F428E

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

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