#2F538B#2F538B

#2F538B is a dark, moderate blue. Relative luminance 0.087; OKLCH L 44.4% C 0.101 H 258.9°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#2F538B
RGB	rgb(47, 83, 139)
HSL	hsl(217, 49%, 36%)
HSV	hsv(217, 66%, 55%)
CMYK	cmyk(66.2%, 40.3%, 0%, 45.5%)
CIE-LAB	lab(35.31, 6.09, -35.01)
CIE-LCH	lch(35.31, 35.54, 279.87°)
OKLab	oklab(44.41% -0.0195 -0.0996)
OKLCH	oklch(44.41% 0.101 258.9)
XYZ	xyz(8.9241, 8.6541, 25.6212)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F538B #8B672F

analogous

#2F818B #2F538B #392F8B

triadic

#2F538B #8B2F53 #538B2F

tetradic

#2F538B #8B2F81 #8B672F #2F8B39

square

#2F538B #8B2F81 #8B672F #2F8B39

split-complementary

#2F538B #8B392F #818B2F

monochromatic

#101C30 #20385D #2F538B #3E6EB9 #688FCC

Accessibility & contrast

On white

7.69

#2F538B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#2F538B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F538B

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F538B	#FFFFFF	#000000	##FFFFFF
##2F538B	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A588D

Deuteranopia (green-blind)

#2D4F8A

Tritanopia (blue-blind)

#006068

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #2f538b;
/* rgb */ color: rgb(47, 83, 139);
/* oklch */ color: oklch(44.4% 0.101 258.9);

Tailwind

colors: {
  custom: {
    50: '#7183ad',
    500: '#2f538b',
    950: '#000000',
  },
}

SCSS

$custom: #2f538b;
$custom-light: #7183ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2f538b",
  "rgb": {
    "r": 47,
    "g": 83,
    "b": 139
  },
  "hsl": {
    "h": 216.522,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.44405,
    "c": 0.10148,
    "h": 258.9
  },
  "luminance": 0.08655
}

Semantic roles & 50–950 ramp

primary

#2F538B

secondary

#B39463

accent

#A34FD9

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #2F538B

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

Preview Lab → · Contrast checker → · Palette generator →