#1B5F97#1B5F97

#1B5F97 is a mid, moderate cyan. Relative luminance 0.107; OKLCH L 47.3% C 0.112 H 248.2°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#1B5F97
RGB	rgb(27, 95, 151)
HSL	hsl(207, 70%, 35%)
HSV	hsv(207, 82%, 59%)
CMYK	cmyk(82.1%, 37.1%, 0%, 40.8%)
CIE-LAB	lab(38.99, 0.04, -36.48)
CIE-LCH	lch(38.99, 36.48, 270.06°)
OKLab	oklab(47.31% -0.0417 -0.104)
OKLCH	oklch(47.31% 0.112 248.2)
XYZ	xyz(10.1280, 10.6506, 30.7941)
Luminance	0.1065 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5F97 #97531B

analogous

#1B9791 #1B5F97 #1B2197

triadic

#1B5F97 #971B5F #5F971B

tetradic

#1B5F97 #911B97 #97531B #21971B

square

#1B5F97 #911B97 #97531B #21971B

split-complementary

#1B5F97 #971B21 #97911B

monochromatic

#081E2F #123E63 #1B5F97 #2480CB #4D9DDF

Accessibility & contrast

On white

6.71

#1B5F97 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#1B5F97 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5F97

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5F97	#FFFFFF	#000000	##FFFFFF
##1B5F97	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456299

Deuteranopia (green-blind)

#325796

Tritanopia (blue-blind)

#006C74

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1b5f97;
/* rgb */ color: rgb(27, 95, 151);
/* oklch */ color: oklch(47.3% 0.112 248.2);

Tailwind

colors: {
  custom: {
    50: '#6d8cb6',
    500: '#1b5f97',
    950: '#000000',
  },
}

SCSS

$custom: #1b5f97;
$custom-light: #6d8cb6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5f97",
  "rgb": {
    "r": 27,
    "g": 95,
    "b": 151
  },
  "hsl": {
    "h": 207.097,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.47307,
    "c": 0.112,
    "h": 248.2
  },
  "luminance": 0.10652
}

Semantic roles & 50–950 ramp

primary

#1B5F97

secondary

#C1814C

accent

#8B3BEC

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080C11

muted

#7B7D80

Preview Lab

Preview with #1B5F97

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

Preview Lab → · Contrast checker → · Palette generator →