#1F4879#1F4879

#1F4879 is a dark, moderate cyan. Relative luminance 0.063; OKLCH L 39.9% C 0.095 H 254.6°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#1F4879
RGB	rgb(31, 72, 121)
HSL	hsl(213, 59%, 30%)
HSV	hsv(213, 74%, 47%)
CMYK	cmyk(74.4%, 40.5%, 0%, 52.5%)
CIE-LAB	lab(30.17, 3.68, -32.10)
CIE-LCH	lch(30.17, 32.31, 276.55°)
OKLab	oklab(39.88% -0.0253 -0.0915)
OKLCH	oklch(39.88% 0.095 254.6)
XYZ	xyz(6.3324, 6.3058, 18.9689)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4879 #79501F

analogous

#1F7579 #1F4879 #231F79

triadic

#1F4879 #791F48 #48791F

tetradic

#1F4879 #791F75 #79501F #1F7923

square

#1F4879 #791F75 #79501F #1F7923

split-complementary

#1F4879 #79231F #75791F

monochromatic

#060E18 #132B48 #1F4879 #2B65AA #4383CF

Accessibility & contrast

On white

9.29

#1F4879 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1F4879 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4879

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4879	#FFFFFF	#000000	##FFFFFF
##1F4879	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314C7B

Deuteranopia (green-blind)

#234378

Tritanopia (blue-blind)

#00535A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1f4879;
/* rgb */ color: rgb(31, 72, 121);
/* oklch */ color: oklch(39.9% 0.095 254.6);

Tailwind

colors: {
  custom: {
    50: '#677aa0',
    500: '#1f4879',
    950: '#000000',
  },
}

SCSS

$custom: #1f4879;
$custom-light: #677aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4879",
  "rgb": {
    "r": 31,
    "g": 72,
    "b": 121
  },
  "hsl": {
    "h": 212.667,
    "s": 59.211,
    "l": 29.804
  },
  "oklch": {
    "l": 0.39875,
    "c": 0.0949,
    "h": 254.6
  },
  "luminance": 0.06307
}

Semantic roles & 50–950 ramp

primary

#1F4879

secondary

#AC7E47

accent

#9B45E2

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07090E

muted

#7A7B7E

Preview Lab

Preview with #1F4879

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

Preview Lab → · Contrast checker → · Palette generator →