#1B447A#1B447A

#1B447A is a dark, moderate cyan. Relative luminance 0.058; OKLCH L 38.8% C 0.103 H 256.5°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#1B447A
RGB	rgb(27, 68, 122)
HSL	hsl(214, 64%, 29%)
HSV	hsv(214, 78%, 48%)
CMYK	cmyk(77.9%, 44.3%, 0%, 52.2%)
CIE-LAB	lab(28.83, 6.20, -34.87)
CIE-LCH	lch(28.83, 35.42, 280.08°)
OKLab	oklab(38.81% -0.0239 -0.0997)
OKLCH	oklch(38.81% 0.103 256.5)
XYZ	xyz(6.0307, 5.7717, 19.2048)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B447A #7A511B

analogous

#1B747A #1B447A #221B7A

triadic

#1B447A #7A1B44 #447A1B

tetradic

#1B447A #7A1B74 #7A511B #1B7A22

square

#1B447A #7A1B74 #7A511B #1B7A22

split-complementary

#1B447A #7A221B #747A1B

monochromatic

#060E19 #102848 #1B447A #2660AC #3C7DD4

Accessibility & contrast

On white

9.75

#1B447A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1B447A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B447A

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B447A	#FFFFFF	#000000	##FFFFFF
##1B447A	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29497C

Deuteranopia (green-blind)

#184079

Tritanopia (blue-blind)

#005159

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1b447a;
/* rgb */ color: rgb(27, 68, 122);
/* oklch */ color: oklch(38.8% 0.103 256.5);

Tailwind

colors: {
  custom: {
    50: '#6677a1',
    500: '#1b447a',
    950: '#000000',
  },
}

SCSS

$custom: #1b447a;
$custom-light: #6677a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b447a",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 122
  },
  "hsl": {
    "h": 214.105,
    "s": 63.758,
    "l": 29.216
  },
  "oklch": {
    "l": 0.38811,
    "c": 0.10258,
    "h": 256.5
  },
  "luminance": 0.05772
}

Semantic roles & 50–950 ramp

primary

#1B447A

secondary

#AE8043

accent

#9F41E7

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #1B447A

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

Preview Lab → · Contrast checker → · Palette generator →