#2F3F8F#2F3F8F

#2F3F8F is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.133 H 270.7°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F8F
RGB	rgb(47, 63, 143)
HSL	hsl(230, 51%, 37%)
HSV	hsv(230, 67%, 56%)
CMYK	cmyk(67.1%, 55.9%, 0%, 43.9%)
CIE-LAB	lab(29.77, 20.99, -46.35)
CIE-LCH	lch(29.77, 50.88, 294.36°)
OKLab	oklab(40.25% 0.0017 -0.1332)
OKLCH	oklch(40.25% 0.133 270.7)
XYZ	xyz(7.9060, 6.1418, 26.7501)
Luminance	0.0614 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F8F #8F7F2F

analogous

#2F6F8F #2F3F8F #4F2F8F

triadic

#2F3F8F #8F2F3F #3F8F2F

tetradic

#2F3F8F #8F2F6F #8F7F2F #2F8F4F

square

#2F3F8F #8F2F6F #8F7F2F #2F8F4F

split-complementary

#2F3F8F #8F4F2F #6F8F2F

monochromatic

#111633 #202B61 #2F3F8F #3E53BD #6A7BCE

Accessibility & contrast

On white

9.42

#2F3F8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#2F3F8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F8F

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F8F	#FFFFFF	#000000	##FFFFFF
##2F3F8F	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#014B92

Deuteranopia (green-blind)

#00428D

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2f3f8f;
/* rgb */ color: rgb(47, 63, 143);
/* oklch */ color: oklch(40.3% 0.133 270.7);

Tailwind

colors: {
  custom: {
    50: '#7373b0',
    500: '#2f3f8f',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f8f;
$custom-light: #7373b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f8f",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 143
  },
  "hsl": {
    "h": 230,
    "s": 50.526,
    "l": 37.255
  },
  "oklch": {
    "l": 0.40254,
    "c": 0.13323,
    "h": 270.7
  },
  "luminance": 0.06143
}

Semantic roles & 50–950 ramp

primary

#2F3F8F

secondary

#B5A865

accent

#C34EDA

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090811

muted

#7B7B80

Preview Lab

Preview with #2F3F8F

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

Preview Lab → · Contrast checker → · Palette generator →