#2F3CB0#2F3CB0

#2F3CB0 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.6% C 0.182 H 271.1°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#2F3CB0
RGB	rgb(47, 60, 176)
HSL	hsl(234, 58%, 44%)
HSV	hsv(234, 73%, 69%)
CMYK	cmyk(73.3%, 65.9%, 0%, 31%)
CIE-LAB	lab(31.74, 35.07, -63.11)
CIE-LCH	lch(31.74, 72.20, 299.06°)
OKLab	oklab(42.57% 0.0036 -0.1824)
OKLCH	oklch(42.57% 0.182 271.1)
XYZ	xyz(10.6220, 6.9696, 41.8513)
Luminance	0.0697 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3CB0 #B0A32F

analogous

#2F7CB0 #2F3CB0 #622FB0

triadic

#2F3CB0 #B02F3C #3CB02F

tetradic

#2F3CB0 #B02F7C #B0A32F #2FB062

square

#2F3CB0 #B02F7C #B0A32F #2FB062

split-complementary

#2F3CB0 #B0622F #7CB02F

monochromatic

#151B4F #222C80 #2F3CB0 #4D5ACF #7D87DC

Accessibility & contrast

On white

8.77

#2F3CB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#2F3CB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3CB0

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3CB0	#FFFFFF	#000000	##FFFFFF
##2F3CB0	1.00	8.77	2.39	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B4

Deuteranopia (green-blind)

#0045AE

Tritanopia (blue-blind)

#005B70

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f3cb0;
/* rgb */ color: rgb(47, 60, 176);
/* oklch */ color: oklch(42.6% 0.182 271.1);

Tailwind

colors: {
  custom: {
    50: '#7b72c9',
    500: '#2f3cb0',
    950: '#000000',
  },
}

SCSS

$custom: #2f3cb0;
$custom-light: #7b72c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3cb0",
  "rgb": {
    "r": 47,
    "g": 60,
    "b": 176
  },
  "hsl": {
    "h": 233.953,
    "s": 57.848,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42566,
    "c": 0.18249,
    "h": 271.1
  },
  "luminance": 0.06971
}

Semantic roles & 50–950 ramp

primary

#2F3CB0

secondary

#C5BD76

accent

#D247E1

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F3CB0

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

Preview Lab → · Contrast checker → · Palette generator →