#1B5BAA#1B5BAA

#1B5BAA is a mid, vivid cyan. Relative luminance 0.106; OKLCH L 47.6% C 0.142 H 256.2°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#1B5BAA
RGB	rgb(27, 91, 170)
HSL	hsl(213, 73%, 39%)
HSV	hsv(213, 84%, 67%)
CMYK	cmyk(84.1%, 46.5%, 0%, 33.3%)
CIE-LAB	lab(38.93, 10.16, -47.90)
CIE-LCH	lch(38.93, 48.97, 281.98°)
OKLab	oklab(47.63% -0.0338 -0.1376)
OKLCH	oklch(47.63% 0.142 256.2)
XYZ	xyz(11.4461, 10.6160, 39.4682)
Luminance	0.1062 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5BAA #AA6A1B

analogous

#1BA2AA #1B5BAA #221BAA

triadic

#1B5BAA #AA1B5B #5BAA1B

tetradic

#1B5BAA #AA1BA2 #AA6A1B #1BAA22

square

#1B5BAA #AA1BA2 #AA6A1B #1BAA22

split-complementary

#1B5BAA #AA221B #A2AA1B

monochromatic

#0A2240 #133F75 #1B5BAA #2678DC #5B98E5

Accessibility & contrast

On white

6.72

#1B5BAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#1B5BAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5BAA

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5BAA	#FFFFFF	#000000	##FFFFFF
##1B5BAA	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3062AD

Deuteranopia (green-blind)

#0856A8

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1b5baa;
/* rgb */ color: rgb(27, 91, 170);
/* oklch */ color: oklch(47.6% 0.142 256.2);

Tailwind

colors: {
  custom: {
    50: '#7188c4',
    500: '#1b5baa',
    950: '#000000',
  },
}

SCSS

$custom: #1b5baa;
$custom-light: #7188c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5baa",
  "rgb": {
    "r": 27,
    "g": 91,
    "b": 170
  },
  "hsl": {
    "h": 213.147,
    "s": 72.589,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47633,
    "c": 0.1417,
    "h": 256.2
  },
  "luminance": 0.10617
}

Semantic roles & 50–950 ramp

primary

#1B5BAA

secondary

#C99658

accent

#9D39EF

background

#F7F8FC

surface

#EDEFF8

border

#C8CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1B5BAA

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

Preview Lab → · Contrast checker → · Palette generator →