#2F489B#2F489B

#2F489B is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.1% C 0.139 H 267.6°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#2F489B
RGB	rgb(47, 72, 155)
HSL	hsl(226, 53%, 40%)
HSV	hsv(226, 70%, 61%)
CMYK	cmyk(69.7%, 53.5%, 0%, 39.2%)
CIE-LAB	lab(33.15, 19.42, -48.20)
CIE-LCH	lch(33.15, 51.97, 291.94°)
OKLab	oklab(43.08% -0.0058 -0.1385)
OKLCH	oklch(43.08% 0.139 267.6)
XYZ	xyz(9.4040, 7.6047, 31.9762)
Luminance	0.0761 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F489B #9B822F

analogous

#2F7E9B #2F489B #4C2F9B

triadic

#2F489B #9B2F48 #489B2F

tetradic

#2F489B #9B2F7E #9B822F #2F9B4C

square

#2F489B #9B2F7E #9B822F #2F9B4C

split-complementary

#2F489B #9B4C2F #7E9B2F

monochromatic

#131C3D #21326C #2F489B #4260C6 #7188D4

Accessibility & contrast

On white

8.33

#2F489B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#2F489B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F489B

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F489B	#FFFFFF	#000000	##FFFFFF
##2F489B	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#10539E

Deuteranopia (green-blind)

#004999

Tritanopia (blue-blind)

#005C6A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2f489b;
/* rgb */ color: rgb(47, 72, 155);
/* oklch */ color: oklch(43.1% 0.139 267.6);

Tailwind

colors: {
  custom: {
    50: '#757ab9',
    500: '#2f489b',
    950: '#000000',
  },
}

SCSS

$custom: #2f489b;
$custom-light: #757ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f489b",
  "rgb": {
    "r": 47,
    "g": 72,
    "b": 155
  },
  "hsl": {
    "h": 226.111,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.43081,
    "c": 0.13866,
    "h": 267.6
  },
  "luminance": 0.07606
}

Semantic roles & 50–950 ramp

primary

#2F489B

secondary

#BBA96A

accent

#BB4BDD

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #2F489B

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

Preview Lab → · Contrast checker → · Palette generator →