#1B58AD#1B58AD

#1B58AD is a mid, vivid cyan. Relative luminance 0.102; OKLCH L 47.2% C 0.149 H 258.0°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#1B58AD
RGB	rgb(27, 88, 173)
HSL	hsl(215, 73%, 39%)
HSV	hsv(215, 84%, 68%)
CMYK	cmyk(84.4%, 49.1%, 0%, 32.2%)
CIE-LAB	lab(38.25, 13.34, -50.77)
CIE-LCH	lch(38.25, 52.49, 284.72°)
OKLab	oklab(47.18% -0.031 -0.1461)
OKLCH	oklch(47.18% 0.149 258)
XYZ	xyz(11.4818, 10.2282, 40.8961)
Luminance	0.1023 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B58AD #AD701B

analogous

#1BA1AD #1B58AD #271BAD

triadic

#1B58AD #AD1B58 #58AD1B

tetradic

#1B58AD #AD1BA1 #AD701B #1BAD27

square

#1B58AD #AD1BA1 #AD701B #1BAD27

split-complementary

#1B58AD #AD271B #A1AD1B

monochromatic

#0A2243 #133D78 #1B58AD #2874DD #5D96E6

Accessibility & contrast

On white

6.89

#1B58AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#1B58AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B58AD

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B58AD	#FFFFFF	#000000	##FFFFFF
##1B58AD	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2561B0

Deuteranopia (green-blind)

#0054AB

Tritanopia (blue-blind)

#006D7A

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1b58ad;
/* rgb */ color: rgb(27, 88, 173);
/* oklch */ color: oklch(47.2% 0.149 258.0);

Tailwind

colors: {
  custom: {
    50: '#7286c6',
    500: '#1b58ad',
    950: '#000000',
  },
}

SCSS

$custom: #1b58ad;
$custom-light: #7286c6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b58ad",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 173
  },
  "hsl": {
    "h": 214.932,
    "s": 73,
    "l": 39.216
  },
  "oklch": {
    "l": 0.47175,
    "c": 0.14936,
    "h": 258
  },
  "luminance": 0.1023
}

Semantic roles & 50–950 ramp

primary

#1B58AD

secondary

#CA9B5A

accent

#A338F0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1B58AD

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

Preview Lab → · Contrast checker → · Palette generator →