#1B4E8E#1B4E8E

#1B4E8E is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.6% C 0.119 H 256.0°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E8E
RGB	rgb(27, 78, 142)
HSL	hsl(213, 68%, 33%)
HSV	hsv(213, 81%, 56%)
CMYK	cmyk(81%, 45.1%, 0%, 44.3%)
CIE-LAB	lab(33.21, 7.54, -40.24)
CIE-LCH	lch(33.21, 40.94, 280.61°)
OKLab	oklab(42.62% -0.0287 -0.1153)
OKLCH	oklch(42.62% 0.119 256)
XYZ	xyz(8.0571, 7.6338, 26.6348)
Luminance	0.0764 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E8E #8E5B1B

analogous

#1B878E #1B4E8E #211B8E

triadic

#1B4E8E #8E1B4E #4E8E1B

tetradic

#1B4E8E #8E1B87 #8E5B1B #1B8E21

square

#1B4E8E #8E1B87 #8E5B1B #1B8E21

split-complementary

#1B4E8E #8E211B #878E1B

monochromatic

#071627 #11325B #1B4E8E #256AC1 #4789DC

Accessibility & contrast

On white

8.31

#1B4E8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1B4E8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E8E

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E8E	#FFFFFF	#000000	##FFFFFF
##1B4E8E	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5490

Deuteranopia (green-blind)

#16498D

Tritanopia (blue-blind)

#005D67

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b4e8e;
/* rgb */ color: rgb(27, 78, 142);
/* oklch */ color: oklch(42.6% 0.119 256.0);

Tailwind

colors: {
  custom: {
    50: '#6a7faf',
    500: '#1b4e8e',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e8e;
$custom-light: #6a7faf;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e8e",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 142
  },
  "hsl": {
    "h": 213.391,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.42622,
    "c": 0.11885,
    "h": 256
  },
  "luminance": 0.07635
}

Semantic roles & 50–950 ramp

primary

#1B4E8E

secondary

#BE8947

accent

#9E3DEB

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1B4E8E

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

Preview Lab → · Contrast checker → · Palette generator →