#2F3F8B#2F3F8B

#2F3F8B is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.9% C 0.127 H 270.6°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F8B
RGB	rgb(47, 63, 139)
HSL	hsl(230, 49%, 36%)
HSV	hsv(230, 66%, 55%)
CMYK	cmyk(66.2%, 54.7%, 0%, 45.5%)
CIE-LAB	lab(29.47, 19.50, -44.37)
CIE-LCH	lch(29.47, 48.46, 293.72°)
OKLab	oklab(39.93% 0.0014 -0.1274)
OKLCH	oklch(39.93% 0.127 270.6)
XYZ	xyz(7.6084, 6.0228, 25.1826)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F8B #8B7B2F

analogous

#2F6D8B #2F3F8B #4D2F8B

triadic

#2F3F8B #8B2F3F #3F8B2F

tetradic

#2F3F8B #8B2F6D #8B7B2F #2F8B4D

square

#2F3F8B #8B2F6D #8B7B2F #2F8B4D

split-complementary

#2F3F8B #8B4D2F #6D8B2F

monochromatic

#101630 #202A5D #2F3F8B #3E54B9 #687ACC

Accessibility & contrast

On white

9.53

#2F3F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#2F3F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F8B

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F8B	#FFFFFF	#000000	##FFFFFF
##2F3F8B	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4A8E

Deuteranopia (green-blind)

#004189

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2f3f8b;
/* rgb */ color: rgb(47, 63, 139);
/* oklch */ color: oklch(39.9% 0.127 270.6);

Tailwind

colors: {
  custom: {
    50: '#7273ad',
    500: '#2f3f8b',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f8b;
$custom-light: #7273ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f8b",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 139
  },
  "hsl": {
    "h": 229.565,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.39935,
    "c": 0.1274,
    "h": 270.6
  },
  "luminance": 0.06023
}

Semantic roles & 50–950 ramp

primary

#2F3F8B

secondary

#B3A563

accent

#C14FD9

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #2F3F8B

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

Preview Lab → · Contrast checker → · Palette generator →