#1D55A1#1D55A1

#1D55A1 is a mid, vivid cyan. Relative luminance 0.093; OKLCH L 45.7% C 0.136 H 257.4°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#1D55A1
RGB	rgb(29, 85, 161)
HSL	hsl(215, 69%, 37%)
HSV	hsv(215, 82%, 63%)
CMYK	cmyk(82%, 47.2%, 0%, 36.9%)
CIE-LAB	lab(36.61, 10.72, -46.26)
CIE-LCH	lch(36.61, 47.49, 283.04°)
OKLab	oklab(45.67% -0.0297 -0.1329)
OKLCH	oklch(45.67% 0.136 257.4)
XYZ	xyz(10.1858, 9.3302, 34.9754)
Luminance	0.0933 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D55A1 #A1691D

analogous

#1D97A1 #1D55A1 #271DA1

triadic

#1D55A1 #A11D55 #55A11D

tetradic

#1D55A1 #A11D97 #A1691D #1DA127

square

#1D55A1 #A11D97 #A1691D #1DA127

split-complementary

#1D55A1 #A1271D #97A11D

monochromatic

#0A1E39 #143A6D #1D55A1 #2670D5 #5892E1

Accessibility & contrast

On white

7.33

#1D55A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#1D55A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D55A1

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D55A1	#FFFFFF	#000000	##FFFFFF
##1D55A1	1.00	7.33	2.87	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5CA4

Deuteranopia (green-blind)

#05519F

Tritanopia (blue-blind)

#006773

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1d55a1;
/* rgb */ color: rgb(29, 85, 161);
/* oklch */ color: oklch(45.7% 0.136 257.4);

Tailwind

colors: {
  custom: {
    50: '#6f84bd',
    500: '#1d55a1',
    950: '#000000',
  },
}

SCSS

$custom: #1d55a1;
$custom-light: #6f84bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1d55a1",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 161
  },
  "hsl": {
    "h": 214.545,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.4567,
    "c": 0.13616,
    "h": 257.4
  },
  "luminance": 0.09331
}

Semantic roles & 50–950 ramp

primary

#1D55A1

secondary

#C49555

accent

#A13CEC

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D55A1

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

Preview Lab → · Contrast checker → · Palette generator →