#1F4F91#1F4F91

#1F4F91 is a dark, vivid cyan. Relative luminance 0.079; OKLCH L 43.2% C 0.121 H 257.3°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#1F4F91
RGB	rgb(31, 79, 145)
HSL	hsl(215, 65%, 35%)
HSV	hsv(215, 79%, 57%)
CMYK	cmyk(78.6%, 45.5%, 0%, 43.1%)
CIE-LAB	lab(33.83, 8.55, -41.07)
CIE-LCH	lch(33.83, 41.95, 281.76°)
OKLab	oklab(43.2% -0.0265 -0.1177)
OKLCH	oklch(43.2% 0.121 257.3)
XYZ	xyz(8.4700, 7.9266, 27.8662)
Luminance	0.0793 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4F91 #91611F

analogous

#1F8891 #1F4F91 #281F91

triadic

#1F4F91 #911F4F #4F911F

tetradic

#1F4F91 #911F88 #91611F #1F9128

square

#1F4F91 #911F88 #91611F #1F9128

split-complementary

#1F4F91 #91281F #88911F

monochromatic

#09182C #14345F #1F4F91 #2A6AC3 #518ADA

Accessibility & contrast

On white

8.12

#1F4F91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#1F4F91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4F91

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4F91	#FFFFFF	#000000	##FFFFFF
##1F4F91	1.00	8.12	2.59	8.12
#FFFFFF	8.12	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5594

Deuteranopia (green-blind)

#164B90

Tritanopia (blue-blind)

#005F69

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1f4f91;
/* rgb */ color: rgb(31, 79, 145);
/* oklch */ color: oklch(43.2% 0.121 257.3);

Tailwind

colors: {
  custom: {
    50: '#6c7fb2',
    500: '#1f4f91',
    950: '#000000',
  },
}

SCSS

$custom: #1f4f91;
$custom-light: #6c7fb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4f91",
  "rgb": {
    "r": 31,
    "g": 79,
    "b": 145
  },
  "hsl": {
    "h": 214.737,
    "s": 64.773,
    "l": 34.51
  },
  "oklch": {
    "l": 0.432,
    "c": 0.12063,
    "h": 257.3
  },
  "luminance": 0.07928
}

Semantic roles & 50–950 ramp

primary

#1F4F91

secondary

#BD8F4F

accent

#A140E8

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1F4F91

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

Preview Lab → · Contrast checker → · Palette generator →