#1F4A80#1F4A80

#1F4A80 is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.8% C 0.103 H 255.6°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#1F4A80
RGB	rgb(31, 74, 128)
HSL	hsl(213, 61%, 31%)
HSV	hsv(213, 76%, 50%)
CMYK	cmyk(75.8%, 42.2%, 0%, 49.8%)
CIE-LAB	lab(31.22, 5.12, -34.78)
CIE-LCH	lch(31.22, 35.16, 278.37°)
OKLab	oklab(40.83% -0.0255 -0.0993)
OKLCH	oklch(40.83% 0.103 255.6)
XYZ	xyz(6.9087, 6.7466, 21.3560)
Luminance	0.0675 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4A80 #80551F

analogous

#1F7A80 #1F4A80 #241F80

triadic

#1F4A80 #801F4A #4A801F

tetradic

#1F4A80 #801F7A #80551F #1F8024

square

#1F4A80 #801F7A #80551F #1F8024

split-complementary

#1F4A80 #80241F #7A801F

monochromatic

#07111D #132E4F #1F4A80 #2B66B1 #4785D2

Accessibility & contrast

On white

8.94

#1F4A80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1F4A80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4A80

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4A80	#FFFFFF	#000000	##FFFFFF
##1F4A80	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304E82

Deuteranopia (green-blind)

#20457F

Tritanopia (blue-blind)

#00575E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1f4a80;
/* rgb */ color: rgb(31, 74, 128);
/* oklch */ color: oklch(40.8% 0.103 255.6);

Tailwind

colors: {
  custom: {
    50: '#697ca5',
    500: '#1f4a80',
    950: '#000000',
  },
}

SCSS

$custom: #1f4a80;
$custom-light: #697ca5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4a80",
  "rgb": {
    "r": 31,
    "g": 74,
    "b": 128
  },
  "hsl": {
    "h": 213.402,
    "s": 61.006,
    "l": 31.176
  },
  "oklch": {
    "l": 0.40832,
    "c": 0.10256,
    "h": 255.6
  },
  "luminance": 0.06747
}

Semantic roles & 50–950 ramp

primary

#1F4A80

secondary

#B38348

accent

#9D44E4

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1F4A80

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

Preview Lab → · Contrast checker → · Palette generator →