#1B4F8A#1B4F8A

#1B4F8A is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.6% C 0.112 H 254.2°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#1B4F8A
RGB	rgb(27, 79, 138)
HSL	hsl(212, 67%, 32%)
HSV	hsv(212, 80%, 54%)
CMYK	cmyk(80.4%, 42.8%, 0%, 45.9%)
CIE-LAB	lab(33.26, 5.26, -37.70)
CIE-LCH	lch(33.26, 38.07, 277.94°)
OKLab	oklab(42.58% -0.0305 -0.1079)
OKLCH	oklch(42.58% 0.112 254.2)
XYZ	xyz(7.8337, 7.6590, 25.1053)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4F8A #8A561B

analogous

#1B878A #1B4F8A #1F1B8A

triadic

#1B4F8A #8A1B4F #4F8A1B

tetradic

#1B4F8A #8A1B87 #8A561B #1B8A1F

square

#1B4F8A #8A1B87 #8A561B #1B8A1F

split-complementary

#1B4F8A #8A1F1B #878A1B

monochromatic

#071424 #113257 #1B4F8A #256CBD #458BDB

Accessibility & contrast

On white

8.29

#1B4F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1B4F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4F8A

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4F8A	#FFFFFF	#000000	##FFFFFF
##1B4F8A	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32548C

Deuteranopia (green-blind)

#1F4A89

Tritanopia (blue-blind)

#005D65

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b4f8a;
/* rgb */ color: rgb(27, 79, 138);
/* oklch */ color: oklch(42.6% 0.112 254.2);

Tailwind

colors: {
  custom: {
    50: '#6a7fac',
    500: '#1b4f8a',
    950: '#000000',
  },
}

SCSS

$custom: #1b4f8a;
$custom-light: #6a7fac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4f8a",
  "rgb": {
    "r": 27,
    "g": 79,
    "b": 138
  },
  "hsl": {
    "h": 211.892,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.42582,
    "c": 0.11209,
    "h": 254.2
  },
  "luminance": 0.0766
}

Semantic roles & 50–950 ramp

primary

#1B4F8A

secondary

#BC8445

accent

#993EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1B4F8A

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

Preview Lab → · Contrast checker → · Palette generator →