#2F45B3#2F45B3

#2F45B3 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.5% C 0.176 H 269.2°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#2F45B3
RGB	rgb(47, 69, 179)
HSL	hsl(230, 58%, 44%)
HSV	hsv(230, 74%, 70%)
CMYK	cmyk(73.7%, 61.5%, 0%, 29.8%)
CIE-LAB	lab(34.22, 30.36, -60.83)
CIE-LCH	lch(34.22, 67.99, 296.53°)
OKLab	oklab(44.47% -0.0025 -0.1757)
OKLCH	oklch(44.47% 0.176 269.2)
XYZ	xyz(11.4343, 8.1141, 43.6026)
Luminance	0.0811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F45B3 #B39D2F

analogous

#2F87B3 #2F45B3 #5B2FB3

triadic

#2F45B3 #B32F45 #45B32F

tetradic

#2F45B3 #B32F87 #B39D2F #2FB35B

square

#2F45B3 #B32F87 #B39D2F #2FB35B

split-complementary

#2F45B3 #B35B2F #87B32F

monochromatic

#162052 #223283 #2F45B3 #4F64D1 #7F8FDD

Accessibility & contrast

On white

8.01

#2F45B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#2F45B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F45B3

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F45B3	#FFFFFF	#000000	##FFFFFF
##2F45B3	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B7

Deuteranopia (green-blind)

#004AB1

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2f45b3;
/* rgb */ color: rgb(47, 69, 179);
/* oklch */ color: oklch(44.5% 0.176 269.2);

Tailwind

colors: {
  custom: {
    50: '#7b78cb',
    500: '#2f45b3',
    950: '#000000',
  },
}

SCSS

$custom: #2f45b3;
$custom-light: #7b78cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f45b3",
  "rgb": {
    "r": 47,
    "g": 69,
    "b": 179
  },
  "hsl": {
    "h": 230,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.44472,
    "c": 0.17571,
    "h": 269.2
  },
  "luminance": 0.08115
}

Semantic roles & 50–950 ramp

primary

#2F45B3

secondary

#C6B978

accent

#C846E2

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #2F45B3

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

Preview Lab → · Contrast checker → · Palette generator →