#2F45B1#2F45B1

#2F45B1 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.3% C 0.173 H 269.2°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#2F45B1
RGB	rgb(47, 69, 177)
HSL	hsl(230, 58%, 44%)
HSV	hsv(230, 73%, 69%)
CMYK	cmyk(73.4%, 61%, 0%, 30.6%)
CIE-LAB	lab(34.05, 29.63, -59.92)
CIE-LCH	lch(34.05, 66.84, 296.31°)
OKLab	oklab(44.3% -0.0025 -0.173)
OKLCH	oklch(44.3% 0.173 269.2)
XYZ	xyz(11.2335, 8.0337, 42.5451)
Luminance	0.0804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F45B1 #B19B2F

analogous

#2F86B1 #2F45B1 #5A2FB1

triadic

#2F45B1 #B12F45 #45B12F

tetradic

#2F45B1 #B12F86 #B19B2F #2FB15A

square

#2F45B1 #B12F86 #B19B2F #2FB15A

split-complementary

#2F45B1 #B15A2F #86B12F

monochromatic

#151F50 #223281 #2F45B1 #4D63D0 #7E8EDD

Accessibility & contrast

On white

8.06

#2F45B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#2F45B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F45B1

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F45B1	#FFFFFF	#000000	##FFFFFF
##2F45B1	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B5

Deuteranopia (green-blind)

#004AAF

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2f45b1;
/* rgb */ color: rgb(47, 69, 177);
/* oklch */ color: oklch(44.3% 0.173 269.2);

Tailwind

colors: {
  custom: {
    50: '#7a78c9',
    500: '#2f45b1',
    950: '#000000',
  },
}

SCSS

$custom: #2f45b1;
$custom-light: #7a78c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f45b1",
  "rgb": {
    "r": 47,
    "g": 69,
    "b": 177
  },
  "hsl": {
    "h": 229.846,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.44297,
    "c": 0.17303,
    "h": 269.2
  },
  "luminance": 0.08035
}

Semantic roles & 50–950 ramp

primary

#2F45B1

secondary

#C5B876

accent

#C747E1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #2F45B1

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

Preview Lab → · Contrast checker → · Palette generator →