#2F3F8E#2F3F8E

#2F3F8E is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.2% C 0.132 H 270.7°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F8E
RGB	rgb(47, 63, 142)
HSL	hsl(230, 50%, 37%)
HSV	hsv(230, 67%, 56%)
CMYK	cmyk(66.9%, 55.6%, 0%, 44.3%)
CIE-LAB	lab(29.69, 20.62, -45.86)
CIE-LCH	lch(29.69, 50.28, 294.21°)
OKLab	oklab(40.17% 0.0016 -0.1318)
OKLCH	oklch(40.17% 0.132 270.7)
XYZ	xyz(7.8306, 6.1116, 26.3529)
Luminance	0.0611 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F8E #8E7E2F

analogous

#2F6F8E #2F3F8E #4F2F8E

triadic

#2F3F8E #8E2F3F #3F8E2F

tetradic

#2F3F8E #8E2F6F #8E7E2F #2F8E4F

square

#2F3F8E #8E2F6F #8E7E2F #2F8E4F

split-complementary

#2F3F8E #8E4F2F #6F8E2F

monochromatic

#111632 #202B60 #2F3F8E #3E53BC #6A7BCE

Accessibility & contrast

On white

9.45

#2F3F8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#2F3F8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F8E

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F8E	#FFFFFF	#000000	##FFFFFF
##2F3F8E	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044A91

Deuteranopia (green-blind)

#00428C

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2f3f8e;
/* rgb */ color: rgb(47, 63, 142);
/* oklch */ color: oklch(40.2% 0.132 270.7);

Tailwind

colors: {
  custom: {
    50: '#7373b0',
    500: '#2f3f8e',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f8e;
$custom-light: #7373b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f8e",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 142
  },
  "hsl": {
    "h": 229.895,
    "s": 50.265,
    "l": 37.059
  },
  "oklch": {
    "l": 0.40174,
    "c": 0.13178,
    "h": 270.7
  },
  "luminance": 0.06112
}

Semantic roles & 50–950 ramp

primary

#2F3F8E

secondary

#B5A764

accent

#C24EDA

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #2F3F8E

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

Preview Lab → · Contrast checker → · Palette generator →