#2F4D8B#2F4D8B

#2F4D8B is a dark, moderate blue. Relative luminance 0.078; OKLCH L 43.0% C 0.109 H 263.1°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#2F4D8B
RGB	rgb(47, 77, 139)
HSL	hsl(220, 49%, 36%)
HSV	hsv(220, 66%, 55%)
CMYK	cmyk(66.2%, 44.6%, 0%, 45.5%)
CIE-LAB	lab(33.51, 10.05, -37.88)
CIE-LCH	lch(33.51, 39.19, 284.87°)
OKLab	oklab(43.01% -0.013 -0.1081)
OKLCH	oklch(43.01% 0.109 263.1)
XYZ	xyz(8.4847, 7.7754, 25.4747)
Luminance	0.0778 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F4D8B #8B6D2F

analogous

#2F7B8B #2F4D8B #3F2F8B

triadic

#2F4D8B #8B2F4D #4D8B2F

tetradic

#2F4D8B #8B2F7B #8B6D2F #2F8B3F

square

#2F4D8B #8B2F7B #8B6D2F #2F8B3F

split-complementary

#2F4D8B #8B3F2F #7B8B2F

monochromatic

#101A30 #20345D #2F4D8B #3E66B9 #6889CC

Accessibility & contrast

On white

8.22

#2F4D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#2F4D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F4D8B

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F4D8B	#FFFFFF	#000000	##FFFFFF
##2F4D8B	1.00	8.22	2.56	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#30538D

Deuteranopia (green-blind)

#214B8A

Tritanopia (blue-blind)

#005B65

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2f4d8b;
/* rgb */ color: rgb(47, 77, 139);
/* oklch */ color: oklch(43.0% 0.109 263.1);

Tailwind

colors: {
  custom: {
    50: '#717ead',
    500: '#2f4d8b',
    950: '#000000',
  },
}

SCSS

$custom: #2f4d8b;
$custom-light: #717ead;
$custom-dark: #000000;

JSON

{
  "hex": "#2f4d8b",
  "rgb": {
    "r": 47,
    "g": 77,
    "b": 139
  },
  "hsl": {
    "h": 220.435,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.43014,
    "c": 0.10886,
    "h": 263.1
  },
  "luminance": 0.07776
}

Semantic roles & 50–950 ramp

primary

#2F4D8B

secondary

#B39963

accent

#AC4FD9

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #2F4D8B

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

Preview Lab → · Contrast checker → · Palette generator →