#1B5BAD#1B5BAD

#1B5BAD is a mid, vivid cyan. Relative luminance 0.107; OKLCH L 47.8% C 0.146 H 256.8°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#1B5BAD
RGB	rgb(27, 91, 173)
HSL	hsl(214, 73%, 39%)
HSV	hsv(214, 84%, 68%)
CMYK	cmyk(84.4%, 47.4%, 0%, 32.2%)
CIE-LAB	lab(39.12, 11.36, -49.36)
CIE-LCH	lch(39.12, 50.65, 282.96°)
OKLab	oklab(47.85% -0.0333 -0.1419)
OKLCH	oklch(47.85% 0.146 256.8)
XYZ	xyz(11.7331, 10.7308, 40.9799)
Luminance	0.1073 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5BAD #AD6D1B

analogous

#1BA4AD #1B5BAD #241BAD

triadic

#1B5BAD #AD1B5B #5BAD1B

tetradic

#1B5BAD #AD1BA4 #AD6D1B #1BAD24

square

#1B5BAD #AD1BA4 #AD6D1B #1BAD24

split-complementary

#1B5BAD #AD241B #A4AD1B

monochromatic

#0A2343 #133F78 #1B5BAD #2877DD #5D99E6

Accessibility & contrast

On white

6.67

#1B5BAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#1B5BAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5BAD

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5BAD	#FFFFFF	#000000	##FFFFFF
##1B5BAD	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D63B0

Deuteranopia (green-blind)

#0056AB

Tritanopia (blue-blind)

#006F7B

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1b5bad;
/* rgb */ color: rgb(27, 91, 173);
/* oklch */ color: oklch(47.8% 0.146 256.8);

Tailwind

colors: {
  custom: {
    50: '#7288c6',
    500: '#1b5bad',
    950: '#000000',
  },
}

SCSS

$custom: #1b5bad;
$custom-light: #7288c6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5bad",
  "rgb": {
    "r": 27,
    "g": 91,
    "b": 173
  },
  "hsl": {
    "h": 213.699,
    "s": 73,
    "l": 39.216
  },
  "oklch": {
    "l": 0.47849,
    "c": 0.14574,
    "h": 256.8
  },
  "luminance": 0.10732
}

Semantic roles & 50–950 ramp

primary

#1B5BAD

secondary

#CA995A

accent

#9F38F0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1B5BAD

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

Preview Lab → · Contrast checker → · Palette generator →