#1B4E6E#1B4E6E

#1B4E6E is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.6% C 0.076 H 240.1°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E6E
RGB	rgb(27, 78, 110)
HSL	hsl(203, 61%, 27%)
HSV	hsv(203, 75%, 43%)
CMYK	cmyk(75.5%, 29.1%, 0%, 56.9%)
CIE-LAB	lab(31.36, -5.18, -23.32)
CIE-LCH	lch(31.36, 23.89, 257.48°)
OKLab	oklab(40.58% -0.0378 -0.0658)
OKLCH	oklch(40.58% 0.076 240.1)
XYZ	xyz(5.9898, 6.8069, 15.7470)
Luminance	0.0681 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E6E #6E3B1B

analogous

#1B6E65 #1B4E6E #1B246E

triadic

#1B4E6E #6E1B4E #4E6E1B

tetradic

#1B4E6E #651B6E #6E3B1B #246E1B

square

#1B4E6E #651B6E #6E3B1B #246E1B

split-complementary

#1B4E6E #6E1B24 #6E651B

monochromatic

#061119 #0F2B3D #1B4E6E #27719F #3693CE

Accessibility & contrast

On white

8.89

#1B4E6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#1B4E6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E6E

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E6E	#FFFFFF	#000000	##FFFFFF
##1B4E6E	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F4E6F

Deuteranopia (green-blind)

#34466D

Tritanopia (blue-blind)

#005659

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b4e6e;
/* rgb */ color: rgb(27, 78, 110);
/* oklch */ color: oklch(40.6% 0.076 240.1);

Tailwind

colors: {
  custom: {
    50: '#637f97',
    500: '#1b4e6e',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e6e;
$custom-light: #637f97;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e6e",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 110
  },
  "hsl": {
    "h": 203.133,
    "s": 60.584,
    "l": 26.863
  },
  "oklch": {
    "l": 0.40575,
    "c": 0.0759,
    "h": 240.1
  },
  "luminance": 0.06808
}

Semantic roles & 50–950 ramp

primary

#1B4E6E

secondary

#A36742

accent

#8244E4

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #1B4E6E

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

Preview Lab → · Contrast checker → · Palette generator →