#1F50A0#1F50A0

#1F50A0 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.5% C 0.140 H 259.9°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#1F50A0
RGB	rgb(31, 80, 160)
HSL	hsl(217, 68%, 37%)
HSV	hsv(217, 81%, 63%)
CMYK	cmyk(80.6%, 50%, 0%, 37.3%)
CIE-LAB	lab(35.13, 13.87, -48.04)
CIE-LCH	lch(35.13, 50.00, 286.10°)
OKLab	oklab(44.53% -0.0247 -0.1382)
OKLCH	oklch(44.53% 0.14 259.9)
XYZ	xyz(9.7766, 8.5655, 34.3889)
Luminance	0.0857 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F50A0 #A06F1F

analogous

#1F91A0 #1F50A0 #2E1FA0

triadic

#1F50A0 #A01F50 #50A01F

tetradic

#1F50A0 #A01F91 #A06F1F #1FA02E

square

#1F50A0 #A01F91 #A06F1F #1FA02E

split-complementary

#1F50A0 #A02E1F #91A01F

monochromatic

#0B1D39 #15366D #1F50A0 #296AD3 #5A8DDF

Accessibility & contrast

On white

7.74

#1F50A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1F50A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F50A0

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F50A0	#FFFFFF	#000000	##FFFFFF
##1F50A0	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2059A3

Deuteranopia (green-blind)

#004D9E

Tritanopia (blue-blind)

#006370

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1f50a0;
/* rgb */ color: rgb(31, 80, 160);
/* oklch */ color: oklch(44.5% 0.140 259.9);

Tailwind

colors: {
  custom: {
    50: '#7080bd',
    500: '#1f50a0',
    950: '#000000',
  },
}

SCSS

$custom: #1f50a0;
$custom-light: #7080bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f50a0",
  "rgb": {
    "r": 31,
    "g": 80,
    "b": 160
  },
  "hsl": {
    "h": 217.209,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.44528,
    "c": 0.14038,
    "h": 259.9
  },
  "luminance": 0.08567
}

Semantic roles & 50–950 ramp

primary

#1F50A0

secondary

#C39A58

accent

#A93DEA

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1F50A0

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

Preview Lab → · Contrast checker → · Palette generator →