#1F4E8A#1F4E8A

#1F4E8A is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.5% C 0.112 H 256.0°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E8A
RGB	rgb(31, 78, 138)
HSL	hsl(214, 63%, 33%)
HSV	hsv(214, 78%, 54%)
CMYK	cmyk(77.5%, 43.5%, 0%, 45.9%)
CIE-LAB	lab(33.08, 6.43, -37.99)
CIE-LCH	lch(33.08, 38.53, 279.60°)
OKLab	oklab(42.48% -0.0271 -0.1087)
OKLCH	oklch(42.48% 0.112 256)
XYZ	xyz(7.8752, 7.5742, 25.0867)
Luminance	0.0757 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E8A #8A5B1F

analogous

#1F838A #1F4E8A #251F8A

triadic

#1F4E8A #8A1F4E #4E8A1F

tetradic

#1F4E8A #8A1F83 #8A5B1F #1F8A25

square

#1F4E8A #8A1F83 #8A5B1F #1F8A25

split-complementary

#1F4E8A #8A251F #838A1F

monochromatic

#091626 #143258 #1F4E8A #2A6ABC #4C89D7

Accessibility & contrast

On white

8.35

#1F4E8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1F4E8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E8A

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E8A	#FFFFFF	#000000	##FFFFFF
##1F4E8A	1.00	8.35	2.51	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31538C

Deuteranopia (green-blind)

#1E4989

Tritanopia (blue-blind)

#005C65

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1f4e8a;
/* rgb */ color: rgb(31, 78, 138);
/* oklch */ color: oklch(42.5% 0.112 256.0);

Tailwind

colors: {
  custom: {
    50: '#6b7fac',
    500: '#1f4e8a',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e8a;
$custom-light: #6b7fac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e8a",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 138
  },
  "hsl": {
    "h": 213.645,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.42476,
    "c": 0.11199,
    "h": 256
  },
  "luminance": 0.07575
}

Semantic roles & 50–950 ramp

primary

#1F4E8A

secondary

#BA894B

accent

#9E41E6

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1F4E8A

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

Preview Lab → · Contrast checker → · Palette generator →