#1F4E8E#1F4E8E

#1F4E8E is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.8% C 0.118 H 257.1°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E8E
RGB	rgb(31, 78, 142)
HSL	hsl(215, 64%, 34%)
HSV	hsv(215, 78%, 56%)
CMYK	cmyk(78.2%, 45.1%, 0%, 44.3%)
CIE-LAB	lab(33.33, 8.02, -40.03)
CIE-LCH	lch(33.33, 40.83, 281.33°)
OKLab	oklab(42.75% -0.0262 -0.1147)
OKLCH	oklch(42.75% 0.118 257.1)
XYZ	xyz(8.1702, 7.6921, 26.6401)
Luminance	0.0769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E8E #8E5F1F

analogous

#1F868E #1F4E8E #281F8E

triadic

#1F4E8E #8E1F4E #4E8E1F

tetradic

#1F4E8E #8E1F86 #8E5F1F #1F8E28

square

#1F4E8E #8E1F86 #8E5F1F #1F8E28

split-complementary

#1F4E8E #8E281F #868E1F

monochromatic

#09172A #14325C #1F4E8E #2A6AC0 #4F89D9

Accessibility & contrast

On white

8.27

#1F4E8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1F4E8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E8E

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E8E	#FFFFFF	#000000	##FFFFFF
##1F4E8E	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5490

Deuteranopia (green-blind)

#184A8D

Tritanopia (blue-blind)

#005D67

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1f4e8e;
/* rgb */ color: rgb(31, 78, 142);
/* oklch */ color: oklch(42.8% 0.118 257.1);

Tailwind

colors: {
  custom: {
    50: '#6c7faf',
    500: '#1f4e8e',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e8e;
$custom-light: #6c7faf;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e8e",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 142
  },
  "hsl": {
    "h": 214.595,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.42754,
    "c": 0.11763,
    "h": 257.1
  },
  "luminance": 0.07693
}

Semantic roles & 50–950 ramp

primary

#1F4E8E

secondary

#BB8D4D

accent

#A141E7

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1F4E8E

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

Preview Lab → · Contrast checker → · Palette generator →