#1F4987#1F4987

#1F4987 is a dark, moderate blue. Relative luminance 0.068; OKLCH L 41.1% C 0.114 H 258.3°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#1F4987
RGB	rgb(31, 73, 135)
HSL	hsl(216, 63%, 33%)
HSV	hsv(216, 77%, 53%)
CMYK	cmyk(77%, 45.9%, 0%, 47.1%)
CIE-LAB	lab(31.36, 8.59, -38.90)
CIE-LCH	lch(31.36, 39.84, 282.45°)
OKLab	oklab(41.08% -0.0231 -0.1114)
OKLCH	oklch(41.08% 0.114 258.3)
XYZ	xyz(7.3192, 6.8048, 23.8447)
Luminance	0.0681 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4987 #875D1F

analogous

#1F7D87 #1F4987 #291F87

triadic

#1F4987 #871F49 #49871F

tetradic

#1F4987 #871F7D #875D1F #1F8729

square

#1F4987 #871F7D #875D1F #1F8729

split-complementary

#1F4987 #87291F #7D871F

monochromatic

#081323 #142E55 #1F4987 #2A64B9 #4B83D6

Accessibility & contrast

On white

8.89

#1F4987 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#1F4987 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4987

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4987	#FFFFFF	#000000	##FFFFFF
##1F4987	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294F89

Deuteranopia (green-blind)

#144586

Tritanopia (blue-blind)

#005861

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f4987;
/* rgb */ color: rgb(31, 73, 135);
/* oklch */ color: oklch(41.1% 0.114 258.3);

Tailwind

colors: {
  custom: {
    50: '#6a7baa',
    500: '#1f4987',
    950: '#000000',
  },
}

SCSS

$custom: #1f4987;
$custom-light: #6a7baa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4987",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 135
  },
  "hsl": {
    "h": 215.769,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.41081,
    "c": 0.1138,
    "h": 258.3
  },
  "luminance": 0.06806
}

Semantic roles & 50–950 ramp

primary

#1F4987

secondary

#B88C4A

accent

#A442E6

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1F4987

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

Preview Lab → · Contrast checker → · Palette generator →