#1F4D79#1F4D79

#1F4D79 is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.1% C 0.089 H 250.1°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#1F4D79
RGB	rgb(31, 77, 121)
HSL	hsl(209, 59%, 30%)
HSV	hsv(209, 74%, 47%)
CMYK	cmyk(74.4%, 36.4%, 0%, 52.5%)
CIE-LAB	lab(31.76, 0.37, -29.58)
CIE-LCH	lch(31.76, 29.58, 270.71°)
OKLab	oklab(41.12% -0.0305 -0.084)
OKLCH	oklch(41.12% 0.089 250.1)
XYZ	xyz(6.6688, 6.9788, 19.0810)
Luminance	0.0698 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4D79 #794B1F

analogous

#1F7978 #1F4D79 #1F2079

triadic

#1F4D79 #791F4D #4D791F

tetradic

#1F4D79 #781F79 #794B1F #20791F

square

#1F4D79 #781F79 #794B1F #20791F

split-complementary

#1F4D79 #791F20 #79781F

monochromatic

#061018 #132E48 #1F4D79 #2B6CAA #438BCF

Accessibility & contrast

On white

8.76

#1F4D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#1F4D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4D79

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4D79	#FFFFFF	#000000	##FFFFFF
##1F4D79	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#394F7B

Deuteranopia (green-blind)

#2C4778

Tritanopia (blue-blind)

#00575D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f4d79;
/* rgb */ color: rgb(31, 77, 121);
/* oklch */ color: oklch(41.1% 0.089 250.1);

Tailwind

colors: {
  custom: {
    50: '#677ea0',
    500: '#1f4d79',
    950: '#000000',
  },
}

SCSS

$custom: #1f4d79;
$custom-light: #677ea0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4d79",
  "rgb": {
    "r": 31,
    "g": 77,
    "b": 121
  },
  "hsl": {
    "h": 209.333,
    "s": 59.211,
    "l": 29.804
  },
  "oklch": {
    "l": 0.41117,
    "c": 0.08937,
    "h": 250.1
  },
  "luminance": 0.0698
}

Semantic roles & 50–950 ramp

primary

#1F4D79

secondary

#AC7947

accent

#9245E2

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090E

muted

#7A7B7E

Preview Lab

Preview with #1F4D79

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

Preview Lab → · Contrast checker → · Palette generator →