#1B3E6E#1B3E6E

#1B3E6E is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.5% C 0.092 H 257.0°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#1B3E6E
RGB	rgb(27, 62, 110)
HSL	hsl(215, 61%, 27%)
HSV	hsv(215, 75%, 43%)
CMYK	cmyk(75.5%, 43.6%, 0%, 56.9%)
CIE-LAB	lab(26.17, 5.44, -31.53)
CIE-LCH	lch(26.17, 32.00, 279.79°)
OKLab	oklab(36.5% -0.0208 -0.09)
OKLCH	oklch(36.5% 0.092 257)
XYZ	xyz(4.9881, 4.8035, 15.4131)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3E6E #6E4B1B

analogous

#1B686E #1B3E6E #221B6E

triadic

#1B3E6E #6E1B3E #3E6E1B

tetradic

#1B3E6E #6E1B68 #6E4B1B #1B6E22

square

#1B3E6E #6E1B68 #6E4B1B #1B6E22

split-complementary

#1B3E6E #6E221B #686E1B

monochromatic

#060E19 #0F223D #1B3E6E #275A9F #3676CE

Accessibility & contrast

On white

10.71

#1B3E6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#1B3E6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3E6E

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3E6E	#FFFFFF	#000000	##FFFFFF
##1B3E6E	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274270

Deuteranopia (green-blind)

#193A6D

Tritanopia (blue-blind)

#004950

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1b3e6e;
/* rgb */ color: rgb(27, 62, 110);
/* oklch */ color: oklch(36.5% 0.092 257.0);

Tailwind

colors: {
  custom: {
    50: '#637298',
    500: '#1b3e6e',
    950: '#000000',
  },
}

SCSS

$custom: #1b3e6e;
$custom-light: #637298;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3e6e",
  "rgb": {
    "r": 27,
    "g": 62,
    "b": 110
  },
  "hsl": {
    "h": 214.699,
    "s": 60.584,
    "l": 26.863
  },
  "oklch": {
    "l": 0.36497,
    "c": 0.09242,
    "h": 257
  },
  "luminance": 0.04804
}

Semantic roles & 50–950 ramp

primary

#1B3E6E

secondary

#A37A42

accent

#A044E4

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #1B3E6E

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

Preview Lab → · Contrast checker → · Palette generator →