#2F3BB8#2F3BB8

#2F3BB8 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.2% C 0.194 H 271.1°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#2F3BB8
RGB	rgb(47, 59, 184)
HSL	hsl(235, 59%, 45%)
HSV	hsv(235, 74%, 72%)
CMYK	cmyk(74.5%, 67.9%, 0%, 27.8%)
CIE-LAB	lab(32.24, 38.54, -67.04)
CIE-LCH	lch(32.24, 77.33, 299.90°)
OKLab	oklab(43.16% 0.0036 -0.1939)
OKLCH	oklch(43.16% 0.194 271.1)
XYZ	xyz(11.3850, 7.1918, 46.1262)
Luminance	0.0719 (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

#2F3BB8 #B8AC2F

analogous

#2F7FB8 #2F3BB8 #682FB8

triadic

#2F3BB8 #B82F3B #3BB82F

tetradic

#2F3BB8 #B82F7F #B8AC2F #2FB868

square

#2F3BB8 #B82F7F #B8AC2F #2FB868

split-complementary

#2F3BB8 #B8682F #7FB82F

monochromatic

#161C57 #232B87 #2F3BB8 #525DD3 #828ADF

Accessibility & contrast

On white

8.61

#2F3BB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#2F3BB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3BB8

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3BB8	#FFFFFF	#000000	##FFFFFF
##2F3BB8	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BC

Deuteranopia (green-blind)

#0045B6

Tritanopia (blue-blind)

#005D74

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2f3bb8;
/* rgb */ color: rgb(47, 59, 184);
/* oklch */ color: oklch(43.2% 0.194 271.1);

Tailwind

colors: {
  custom: {
    50: '#7d71ce',
    500: '#2f3bb8',
    950: '#000000',
  },
}

SCSS

$custom: #2f3bb8;
$custom-light: #7d71ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3bb8",
  "rgb": {
    "r": 47,
    "g": 59,
    "b": 184
  },
  "hsl": {
    "h": 234.745,
    "s": 59.307,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43156,
    "c": 0.19396,
    "h": 271.1
  },
  "luminance": 0.07193
}

Semantic roles & 50–950 ramp

primary

#2F3BB8

secondary

#C8C17B

accent

#D545E2

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2F3BB8

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

Preview Lab → · Contrast checker → · Palette generator →