#1D57AA#1D57AA

#1D57AA is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.8% C 0.146 H 258.2°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#1D57AA
RGB	rgb(29, 87, 170)
HSL	hsl(215, 71%, 39%)
HSV	hsv(215, 83%, 67%)
CMYK	cmyk(82.9%, 48.8%, 0%, 33.3%)
CIE-LAB	lab(37.80, 12.98, -49.71)
CIE-LCH	lch(37.80, 51.37, 284.64°)
OKLab	oklab(46.78% -0.0297 -0.143)
OKLCH	oklch(46.78% 0.146 258.2)
XYZ	xyz(11.1679, 9.9785, 39.3599)
Luminance	0.0998 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D57AA #AA701D

analogous

#1D9EAA #1D57AA #2A1DAA

triadic

#1D57AA #AA1D57 #57AA1D

tetradic

#1D57AA #AA1D9E #AA701D #1DAA2A

square

#1D57AA #AA1D9E #AA701D #1DAA2A

split-complementary

#1D57AA #AA2A1D #9EAA1D

monochromatic

#0B2141 #143C76 #1D57AA #2A72DB #5E95E4

Accessibility & contrast

On white

7.01

#1D57AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#1D57AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D57AA

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D57AA	#FFFFFF	#000000	##FFFFFF
##1D57AA	1.00	7.01	3.00	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2760AD

Deuteranopia (green-blind)

#0053A8

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1d57aa;
/* rgb */ color: rgb(29, 87, 170);
/* oklch */ color: oklch(46.8% 0.146 258.2);

Tailwind

colors: {
  custom: {
    50: '#7285c4',
    500: '#1d57aa',
    950: '#000000',
  },
}

SCSS

$custom: #1d57aa;
$custom-light: #7285c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d57aa",
  "rgb": {
    "r": 29,
    "g": 87,
    "b": 170
  },
  "hsl": {
    "h": 215.319,
    "s": 70.854,
    "l": 39.02
  },
  "oklch": {
    "l": 0.46782,
    "c": 0.14603,
    "h": 258.2
  },
  "luminance": 0.0998
}

Semantic roles & 50–950 ramp

primary

#1D57AA

secondary

#C89B5B

accent

#A43AEE

background

#F7F8FC

surface

#EDEFF8

border

#C8CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1D57AA

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

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