#1F4F7C#1F4F7C

#1F4F7C is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.8% C 0.091 H 249.7°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#1F4F7C
RGB	rgb(31, 79, 124)
HSL	hsl(209, 60%, 30%)
HSV	hsv(209, 75%, 49%)
CMYK	cmyk(75%, 36.3%, 0%, 51.4%)
CIE-LAB	lab(32.56, 0.24, -30.17)
CIE-LCH	lch(32.56, 30.17, 270.45°)
OKLab	oklab(41.8% -0.0317 -0.0857)
OKLCH	oklch(41.8% 0.091 249.7)
XYZ	xyz(6.9978, 7.3377, 20.1124)
Luminance	0.0734 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4F7C #7C4C1F

analogous

#1F7C7A #1F4F7C #1F217C

triadic

#1F4F7C #7C1F4F #4F7C1F

tetradic

#1F4F7C #7A1F7C #7C4C1F #217C1F

square

#1F4F7C #7A1F7C #7C4C1F #217C1F

split-complementary

#1F4F7C #7C1F21 #7C7A1F

monochromatic

#07111A #13304B #1F4F7C #2B6EAD #458DD0

Accessibility & contrast

On white

8.51

#1F4F7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1F4F7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4F7C

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4F7C	#FFFFFF	#000000	##FFFFFF
##1F4F7C	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B517E

Deuteranopia (green-blind)

#2D497B

Tritanopia (blue-blind)

#005A5F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f4f7c;
/* rgb */ color: rgb(31, 79, 124);
/* oklch */ color: oklch(41.8% 0.091 249.7);

Tailwind

colors: {
  custom: {
    50: '#6880a2',
    500: '#1f4f7c',
    950: '#000000',
  },
}

SCSS

$custom: #1f4f7c;
$custom-light: #6880a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4f7c",
  "rgb": {
    "r": 31,
    "g": 79,
    "b": 124
  },
  "hsl": {
    "h": 209.032,
    "s": 60,
    "l": 30.392
  },
  "oklch": {
    "l": 0.41803,
    "c": 0.09139,
    "h": 249.7
  },
  "luminance": 0.07339
}

Semantic roles & 50–950 ramp

primary

#1F4F7C

secondary

#AF7A48

accent

#9145E3

background

#F6F7FA

surface

#EBEEF3

border

#C6C9CD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1F4F7C

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

Preview Lab → · Contrast checker → · Palette generator →