#2F3F8D#2F3F8D

#2F3F8D is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.1% C 0.130 H 270.7°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F8D
RGB	rgb(47, 63, 141)
HSL	hsl(230, 50%, 37%)
HSV	hsv(230, 67%, 55%)
CMYK	cmyk(66.7%, 55.3%, 0%, 44.7%)
CIE-LAB	lab(29.62, 20.24, -45.36)
CIE-LCH	lch(29.62, 49.68, 294.05°)
OKLab	oklab(40.09% 0.0016 -0.1303)
OKLCH	oklch(40.09% 0.13 270.7)
XYZ	xyz(7.7559, 6.0817, 25.9593)
Luminance	0.0608 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F8D #8D7D2F

analogous

#2F6E8D #2F3F8D #4E2F8D

triadic

#2F3F8D #8D2F3F #3F8D2F

tetradic

#2F3F8D #8D2F6E #8D7D2F #2F8D4E

square

#2F3F8D #8D2F6E #8D7D2F #2F8D4E

split-complementary

#2F3F8D #8D4E2F #6E8D2F

monochromatic

#101631 #202A5F #2F3F8D #3E54BB #697ACD

Accessibility & contrast

On white

9.47

#2F3F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#2F3F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F8D

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F8D	#FFFFFF	#000000	##FFFFFF
##2F3F8D	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#074A90

Deuteranopia (green-blind)

#00428B

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2f3f8d;
/* rgb */ color: rgb(47, 63, 141);
/* oklch */ color: oklch(40.1% 0.130 270.7);

Tailwind

colors: {
  custom: {
    50: '#7373af',
    500: '#2f3f8d',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f8d;
$custom-light: #7373af;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f8d",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 141
  },
  "hsl": {
    "h": 229.787,
    "s": 50,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40094,
    "c": 0.13032,
    "h": 270.7
  },
  "luminance": 0.06082
}

Semantic roles & 50–950 ramp

primary

#2F3F8D

secondary

#B4A664

accent

#C24EDA

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #2F3F8D

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

Preview Lab → · Contrast checker → · Palette generator →