#1B59AA#1B59AA

#1B59AA is a mid, vivid cyan. Relative luminance 0.103; OKLCH L 47.2% C 0.144 H 257.0°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#1B59AA
RGB	rgb(27, 89, 170)
HSL	hsl(214, 73%, 39%)
HSV	hsv(214, 84%, 67%)
CMYK	cmyk(84.1%, 47.6%, 0%, 33.3%)
CIE-LAB	lab(38.34, 11.48, -48.85)
CIE-LCH	lch(38.34, 50.18, 283.22°)
OKLab	oklab(47.18% -0.0323 -0.1404)
OKLCH	oklch(47.18% 0.144 257)
XYZ	xyz(11.2774, 10.2786, 39.4120)
Luminance	0.1028 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B59AA #AA6C1B

analogous

#1BA0AA #1B59AA #241BAA

triadic

#1B59AA #AA1B59 #59AA1B

tetradic

#1B59AA #AA1BA0 #AA6C1B #1BAA24

square

#1B59AA #AA1BA0 #AA6C1B #1BAA24

split-complementary

#1B59AA #AA241B #A0AA1B

monochromatic

#0A2240 #133D75 #1B59AA #2675DC #5B97E5

Accessibility & contrast

On white

6.87

#1B59AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#1B59AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B59AA

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B59AA	#FFFFFF	#000000	##FFFFFF
##1B59AA	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B61AD

Deuteranopia (green-blind)

#0054A8

Tritanopia (blue-blind)

#006D79

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1b59aa;
/* rgb */ color: rgb(27, 89, 170);
/* oklch */ color: oklch(47.2% 0.144 257.0);

Tailwind

colors: {
  custom: {
    50: '#7187c4',
    500: '#1b59aa',
    950: '#000000',
  },
}

SCSS

$custom: #1b59aa;
$custom-light: #7187c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b59aa",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 170
  },
  "hsl": {
    "h": 213.986,
    "s": 72.589,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47179,
    "c": 0.1441,
    "h": 257
  },
  "luminance": 0.1028
}

Semantic roles & 50–950 ramp

primary

#1B59AA

secondary

#C99858

accent

#A039EF

background

#F7F8FC

surface

#EDEFF8

border

#C8CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1B59AA

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

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