#1F4890#1F4890

#1F4890 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.5% C 0.128 H 260.7°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#1F4890
RGB	rgb(31, 72, 144)
HSL	hsl(218, 65%, 34%)
HSV	hsv(218, 78%, 56%)
CMYK	cmyk(78.5%, 50%, 0%, 43.5%)
CIE-LAB	lab(31.67, 12.88, -43.93)
CIE-LCH	lch(31.67, 45.78, 286.34°)
OKLab	oklab(41.51% -0.0206 -0.1263)
OKLCH	oklch(41.51% 0.128 260.7)
XYZ	xyz(7.9147, 6.9387, 27.3023)
Luminance	0.0694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4890 #90671F

analogous

#1F8190 #1F4890 #2F1F90

triadic

#1F4890 #901F48 #48901F

tetradic

#1F4890 #901F81 #90671F #1F902F

square

#1F4890 #901F81 #90671F #1F902F

split-complementary

#1F4890 #902F1F #81901F

monochromatic

#09162B #142F5E #1F4890 #2A61C2 #5082D9

Accessibility & contrast

On white

8.79

#1F4890 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1F4890 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4890

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4890	#FFFFFF	#000000	##FFFFFF
##1F4890	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E5093

Deuteranopia (green-blind)

#00468F

Tritanopia (blue-blind)

#005965

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f4890;
/* rgb */ color: rgb(31, 72, 144);
/* oklch */ color: oklch(41.5% 0.128 260.7);

Tailwind

colors: {
  custom: {
    50: '#6c7ab1',
    500: '#1f4890',
    950: '#000000',
  },
}

SCSS

$custom: #1f4890;
$custom-light: #6c7ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4890",
  "rgb": {
    "r": 31,
    "g": 72,
    "b": 144
  },
  "hsl": {
    "h": 218.23,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.41514,
    "c": 0.12794,
    "h": 260.7
  },
  "luminance": 0.0694
}

Semantic roles & 50–950 ramp

primary

#1F4890

secondary

#BC944E

accent

#AB40E8

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4890

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

Preview Lab → · Contrast checker → · Palette generator →