#1F5AAD#1F5AAD

#1F5AAD is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.7% C 0.146 H 258.0°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#1F5AAD
RGB	rgb(31, 90, 173)
HSL	hsl(215, 70%, 40%)
HSV	hsv(215, 82%, 68%)
CMYK	cmyk(82.1%, 48%, 0%, 32.2%)
CIE-LAB	lab(38.93, 12.38, -49.66)
CIE-LCH	lch(38.93, 51.18, 284.00°)
OKLab	oklab(47.73% -0.0304 -0.1428)
OKLCH	oklch(47.73% 0.146 258)
XYZ	xyz(11.7613, 10.6193, 40.9569)
Luminance	0.1062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5AAD #AD721F

analogous

#1FA1AD #1F5AAD #2B1FAD

triadic

#1F5AAD #AD1F5A #5AAD1F

tetradic

#1F5AAD #AD1FA1 #AD721F #1FAD2B

square

#1F5AAD #AD1FA1 #AD721F #1FAD2B

split-complementary

#1F5AAD #AD2B1F #A1AD1F

monochromatic

#0C2445 #163F79 #1F5AAD #2F76DA #6398E3

Accessibility & contrast

On white

6.72

#1F5AAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#1F5AAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5AAD

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5AAD	#FFFFFF	#000000	##FFFFFF
##1F5AAD	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B62B0

Deuteranopia (green-blind)

#0056AB

Tritanopia (blue-blind)

#006E7B

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1f5aad;
/* rgb */ color: rgb(31, 90, 173);
/* oklch */ color: oklch(47.7% 0.146 258.0);

Tailwind

colors: {
  custom: {
    50: '#7388c6',
    500: '#1f5aad',
    950: '#000000',
  },
}

SCSS

$custom: #1f5aad;
$custom-light: #7388c6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5aad",
  "rgb": {
    "r": 31,
    "g": 90,
    "b": 173
  },
  "hsl": {
    "h": 215.07,
    "s": 69.608,
    "l": 40
  },
  "oklch": {
    "l": 0.47729,
    "c": 0.14597,
    "h": 258
  },
  "luminance": 0.10621
}

Semantic roles & 50–950 ramp

primary

#1F5AAD

secondary

#C89D60

accent

#A33BEC

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1F5AAD

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

Preview Lab → · Contrast checker → · Palette generator →