#1F57A0#1F57A0

#1F57A0 is a mid, vivid cyan. Relative luminance 0.096; OKLCH L 46.1% C 0.132 H 256.7°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#1F57A0
RGB	rgb(31, 87, 160)
HSL	hsl(214, 68%, 37%)
HSV	hsv(214, 81%, 63%)
CMYK	cmyk(80.6%, 45.6%, 0%, 37.3%)
CIE-LAB	lab(37.20, 9.21, -44.72)
CIE-LCH	lch(37.20, 45.66, 281.63°)
OKLab	oklab(46.12% -0.0304 -0.1283)
OKLCH	oklch(46.12% 0.132 256.7)
XYZ	xyz(10.3161, 9.6445, 34.5688)
Luminance	0.0965 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F57A0 #A0681F

analogous

#1F98A0 #1F57A0 #271FA0

triadic

#1F57A0 #A01F57 #57A01F

tetradic

#1F57A0 #A01F98 #A0681F #1FA027

square

#1F57A0 #A01F98 #A0681F #1FA027

split-complementary

#1F57A0 #A0271F #98A01F

monochromatic

#0B1F39 #153B6D #1F57A0 #2973D3 #5A94DF

Accessibility & contrast

On white

7.17

#1F57A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#1F57A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F57A0

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F57A0	#FFFFFF	#000000	##FFFFFF
##1F57A0	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315EA3

Deuteranopia (green-blind)

#14529F

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1f57a0;
/* rgb */ color: rgb(31, 87, 160);
/* oklch */ color: oklch(46.1% 0.132 256.7);

Tailwind

colors: {
  custom: {
    50: '#7085bc',
    500: '#1f57a0',
    950: '#000000',
  },
}

SCSS

$custom: #1f57a0;
$custom-light: #7085bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1f57a0",
  "rgb": {
    "r": 31,
    "g": 87,
    "b": 160
  },
  "hsl": {
    "h": 213.953,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.46117,
    "c": 0.13183,
    "h": 256.7
  },
  "luminance": 0.09646
}

Semantic roles & 50–950 ramp

primary

#1F57A0

secondary

#C39458

accent

#9F3DEA

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1F57A0

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

Preview Lab → · Contrast checker → · Palette generator →