#1F59AD#1F59AD

#1F59AD is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.5% C 0.147 H 258.4°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#1F59AD
RGB	rgb(31, 89, 173)
HSL	hsl(215, 70%, 40%)
HSV	hsv(215, 82%, 68%)
CMYK	cmyk(82.1%, 48.6%, 0%, 32.2%)
CIE-LAB	lab(38.64, 13.04, -50.13)
CIE-LCH	lch(38.64, 51.80, 284.58°)
OKLab	oklab(47.51% -0.0297 -0.1442)
OKLCH	oklch(47.51% 0.147 258.4)
XYZ	xyz(11.6775, 10.4518, 40.9290)
Luminance	0.1045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F59AD #AD731F

analogous

#1FA0AD #1F59AD #2C1FAD

triadic

#1F59AD #AD1F59 #59AD1F

tetradic

#1F59AD #AD1FA0 #AD731F #1FAD2C

square

#1F59AD #AD1FA0 #AD731F #1FAD2C

split-complementary

#1F59AD #AD2C1F #A0AD1F

monochromatic

#0C2445 #163E79 #1F59AD #2F75DA #6397E3

Accessibility & contrast

On white

6.79

#1F59AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#1F59AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F59AD

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F59AD	#FFFFFF	#000000	##FFFFFF
##1F59AD	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2862B0

Deuteranopia (green-blind)

#0055AB

Tritanopia (blue-blind)

#006D7A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1f59ad;
/* rgb */ color: rgb(31, 89, 173);
/* oklch */ color: oklch(47.5% 0.147 258.4);

Tailwind

colors: {
  custom: {
    50: '#7387c6',
    500: '#1f59ad',
    950: '#000000',
  },
}

SCSS

$custom: #1f59ad;
$custom-light: #7387c6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f59ad",
  "rgb": {
    "r": 31,
    "g": 89,
    "b": 173
  },
  "hsl": {
    "h": 215.493,
    "s": 69.608,
    "l": 40
  },
  "oklch": {
    "l": 0.47506,
    "c": 0.14718,
    "h": 258.4
  },
  "luminance": 0.10453
}

Semantic roles & 50–950 ramp

primary

#1F59AD

secondary

#C89D60

accent

#A43BEC

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1F59AD

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

Preview Lab → · Contrast checker → · Palette generator →