#1B447D#1B447D

#1B447D is a dark, moderate cyan. Relative luminance 0.058; OKLCH L 39.0% C 0.107 H 257.4°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#1B447D
RGB	rgb(27, 68, 125)
HSL	hsl(215, 64%, 30%)
HSV	hsv(215, 78%, 49%)
CMYK	cmyk(78.4%, 45.6%, 0%, 51%)
CIE-LAB	lab(29.02, 7.42, -36.44)
CIE-LCH	lch(29.02, 37.19, 281.50°)
OKLab	oklab(39.02% -0.0233 -0.1044)
OKLCH	oklch(39.02% 0.107 257.4)
XYZ	xyz(6.2194, 5.8472, 20.1989)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B447D #7D541B

analogous

#1B757D #1B447D #231B7D

triadic

#1B447D #7D1B44 #447D1B

tetradic

#1B447D #7D1B75 #7D541B #1B7D23

square

#1B447D #7D1B75 #7D541B #1B7D23

split-complementary

#1B447D #7D231B #757D1B

monochromatic

#050E19 #10294B #1B447D #265FAF #3D7DD5

Accessibility & contrast

On white

9.68

#1B447D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#1B447D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B447D

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B447D	#FFFFFF	#000000	##FFFFFF
##1B447D	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27497F

Deuteranopia (green-blind)

#14407C

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1b447d;
/* rgb */ color: rgb(27, 68, 125);
/* oklch */ color: oklch(39.0% 0.107 257.4);

Tailwind

colors: {
  custom: {
    50: '#6777a3',
    500: '#1b447d',
    950: '#000000',
  },
}

SCSS

$custom: #1b447d;
$custom-light: #6777a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b447d",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 125
  },
  "hsl": {
    "h": 214.898,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.39024,
    "c": 0.10693,
    "h": 257.4
  },
  "luminance": 0.05848
}

Semantic roles & 50–950 ramp

primary

#1B447D

secondary

#B18343

accent

#A240E7

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1B447D

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

Preview Lab → · Contrast checker → · Palette generator →