#1F4D8A#1F4D8A

#1F4D8A is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 42.2% C 0.113 H 256.7°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#1F4D8A
RGB	rgb(31, 77, 138)
HSL	hsl(214, 63%, 33%)
HSV	hsv(214, 78%, 54%)
CMYK	cmyk(77.5%, 44.2%, 0%, 45.9%)
CIE-LAB	lab(32.77, 7.10, -38.48)
CIE-LCH	lch(32.77, 39.13, 280.45°)
OKLab	oklab(42.24% -0.0261 -0.1101)
OKLCH	oklch(42.24% 0.113 256.7)
XYZ	xyz(7.8047, 7.4331, 25.0632)
Luminance	0.0743 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4D8A #8A5C1F

analogous

#1F828A #1F4D8A #271F8A

triadic

#1F4D8A #8A1F4D #4D8A1F

tetradic

#1F4D8A #8A1F82 #8A5C1F #1F8A27

square

#1F4D8A #8A1F82 #8A5C1F #1F8A27

split-complementary

#1F4D8A #8A271F #828A1F

monochromatic

#091526 #143158 #1F4D8A #2A69BC #4C88D7

Accessibility & contrast

On white

8.44

#1F4D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1F4D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4D8A

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4D8A	#FFFFFF	#000000	##FFFFFF
##1F4D8A	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F528C

Deuteranopia (green-blind)

#1B4989

Tritanopia (blue-blind)

#005B64

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f4d8a;
/* rgb */ color: rgb(31, 77, 138);
/* oklch */ color: oklch(42.2% 0.113 256.7);

Tailwind

colors: {
  custom: {
    50: '#6b7eac',
    500: '#1f4d8a',
    950: '#000000',
  },
}

SCSS

$custom: #1f4d8a;
$custom-light: #6b7eac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4d8a",
  "rgb": {
    "r": 31,
    "g": 77,
    "b": 138
  },
  "hsl": {
    "h": 214.206,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.42238,
    "c": 0.11319,
    "h": 256.7
  },
  "luminance": 0.07434
}

Semantic roles & 50–950 ramp

primary

#1F4D8A

secondary

#BA8A4B

accent

#9F41E6

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1F4D8A

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

Preview Lab → · Contrast checker → · Palette generator →