#1F4F7F#1F4F7F

#1F4F7F is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 42.0% C 0.095 H 251.2°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#1F4F7F
RGB	rgb(31, 79, 127)
HSL	hsl(210, 61%, 31%)
HSV	hsv(210, 76%, 50%)
CMYK	cmyk(75.6%, 37.8%, 0%, 50.2%)
CIE-LAB	lab(32.73, 1.41, -31.76)
CIE-LCH	lch(32.73, 31.79, 272.54°)
OKLab	oklab(41.99% -0.0308 -0.0904)
OKLCH	oklch(41.99% 0.095 251.2)
XYZ	xyz(7.1904, 7.4148, 21.1268)
Luminance	0.0742 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4F7F #7F4F1F

analogous

#1F7F7F #1F4F7F #1F1F7F

triadic

#1F4F7F #7F1F4F #4F7F1F

tetradic

#1F4F7F #7F1F7F #7F4F1F #1F7F1F

square

#1F4F7F #7F1F7F #7F4F1F #1F7F1F

split-complementary

#1F4F7F #7F1F1F #7F7F1F

monochromatic

#07121D #13304E #1F4F7F #2B6EB0 #468CD2

Accessibility & contrast

On white

8.46

#1F4F7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1F4F7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4F7F

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4F7F	#FFFFFF	#000000	##FFFFFF
##1F4F7F	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395281

Deuteranopia (green-blind)

#2B497E

Tritanopia (blue-blind)

#005A61

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f4f7f;
/* rgb */ color: rgb(31, 79, 127);
/* oklch */ color: oklch(42.0% 0.095 251.2);

Tailwind

colors: {
  custom: {
    50: '#6880a4',
    500: '#1f4f7f',
    950: '#000000',
  },
}

SCSS

$custom: #1f4f7f;
$custom-light: #6880a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4f7f",
  "rgb": {
    "r": 31,
    "g": 79,
    "b": 127
  },
  "hsl": {
    "h": 210,
    "s": 60.759,
    "l": 30.98
  },
  "oklch": {
    "l": 0.41991,
    "c": 0.09549,
    "h": 251.2
  },
  "luminance": 0.07416
}

Semantic roles & 50–950 ramp

primary

#1F4F7F

secondary

#B27D48

accent

#9444E4

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1F4F7F

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

Preview Lab → · Contrast checker → · Palette generator →