#1F4F90#1F4F90

#1F4F90 is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 43.1% C 0.119 H 257.1°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#1F4F90
RGB	rgb(31, 79, 144)
HSL	hsl(215, 65%, 34%)
HSV	hsv(215, 78%, 56%)
CMYK	cmyk(78.5%, 45.1%, 0%, 43.5%)
CIE-LAB	lab(33.77, 8.15, -40.56)
CIE-LCH	lch(33.77, 41.37, 281.36°)
OKLab	oklab(43.13% -0.0267 -0.1162)
OKLCH	oklch(43.13% 0.119 257.1)
XYZ	xyz(8.3932, 7.8959, 27.4619)
Luminance	0.0790 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4F90 #90601F

analogous

#1F8890 #1F4F90 #281F90

triadic

#1F4F90 #901F4F #4F901F

tetradic

#1F4F90 #901F88 #90601F #1F9028

square

#1F4F90 #901F88 #90601F #1F9028

split-complementary

#1F4F90 #90281F #88901F

monochromatic

#09182B #14335E #1F4F90 #2A6BC2 #508AD9

Accessibility & contrast

On white

8.14

#1F4F90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1F4F90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4F90

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4F90	#FFFFFF	#000000	##FFFFFF
##1F4F90	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5592

Deuteranopia (green-blind)

#174B8F

Tritanopia (blue-blind)

#005E68

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1f4f90;
/* rgb */ color: rgb(31, 79, 144);
/* oklch */ color: oklch(43.1% 0.119 257.1);

Tailwind

colors: {
  custom: {
    50: '#6c7fb1',
    500: '#1f4f90',
    950: '#000000',
  },
}

SCSS

$custom: #1f4f90;
$custom-light: #6c7fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4f90",
  "rgb": {
    "r": 31,
    "g": 79,
    "b": 144
  },
  "hsl": {
    "h": 214.513,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.4313,
    "c": 0.11924,
    "h": 257.1
  },
  "luminance": 0.07897
}

Semantic roles & 50–950 ramp

primary

#1F4F90

secondary

#BC8E4E

accent

#A040E8

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1F4F90

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

Preview Lab → · Contrast checker → · Palette generator →