#2F437B#2F437B

#2F437B is a dark, moderate blue. Relative luminance 0.060; OKLCH L 39.6% C 0.098 H 267.1°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#2F437B
RGB	rgb(47, 67, 123)
HSL	hsl(224, 45%, 33%)
HSV	hsv(224, 62%, 48%)
CMYK	cmyk(61.8%, 45.5%, 0%, 51.8%)
CIE-LAB	lab(29.53, 10.83, -34.32)
CIE-LCH	lch(29.53, 35.98, 287.51°)
OKLab	oklab(39.63% -0.005 -0.0978)
OKLCH	oklch(39.63% 0.098 267.1)
XYZ	xyz(6.7534, 6.0482, 19.5466)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F437B #7B672F

analogous

#2F697B #2F437B #412F7B

triadic

#2F437B #7B2F43 #437B2F

tetradic

#2F437B #7B2F69 #7B672F #2F7B41

square

#2F437B #7B2F69 #7B672F #2F7B41

split-complementary

#2F437B #7B412F #697B2F

monochromatic

#0D1322 #1E2B4F #2F437B #405BA7 #627BC3

Accessibility & contrast

On white

9.50

#2F437B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#2F437B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F437B

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F437B	#FFFFFF	#000000	##FFFFFF
##2F437B	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A497D

Deuteranopia (green-blind)

#1F427A

Tritanopia (blue-blind)

#005059

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2f437b;
/* rgb */ color: rgb(47, 67, 123);
/* oklch */ color: oklch(39.6% 0.098 267.1);

Tailwind

colors: {
  custom: {
    50: '#6f76a1',
    500: '#2f437b',
    950: '#000000',
  },
}

SCSS

$custom: #2f437b;
$custom-light: #6f76a1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f437b",
  "rgb": {
    "r": 47,
    "g": 67,
    "b": 123
  },
  "hsl": {
    "h": 224.211,
    "s": 44.706,
    "l": 33.333
  },
  "oklch": {
    "l": 0.39634,
    "c": 0.0979,
    "h": 267.1
  },
  "luminance": 0.06049
}

Semantic roles & 50–950 ramp

primary

#2F437B

secondary

#AA955C

accent

#B253D4

background

#F6F7FA

surface

#ECEDF3

border

#C7C8CD

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #2F437B

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

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