#1B4E8F#1B4E8F

#1B4E8F is a dark, vivid cyan. Relative luminance 0.077; OKLCH L 42.7% C 0.120 H 256.3°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E8F
RGB	rgb(27, 78, 143)
HSL	hsl(214, 68%, 33%)
HSV	hsv(214, 81%, 56%)
CMYK	cmyk(81.1%, 45.5%, 0%, 43.9%)
CIE-LAB	lab(33.27, 7.94, -40.75)
CIE-LCH	lch(33.27, 41.51, 281.03°)
OKLab	oklab(42.69% -0.0285 -0.1168)
OKLCH	oklch(42.69% 0.12 256.3)
XYZ	xyz(8.1325, 7.6640, 27.0320)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E8F #8F5C1B

analogous

#1B888F #1B4E8F #221B8F

triadic

#1B4E8F #8F1B4E #4E8F1B

tetradic

#1B4E8F #8F1B88 #8F5C1B #1B8F22

square

#1B4E8F #8F1B88 #8F5C1B #1B8F22

split-complementary

#1B4E8F #8F221B #888F1B

monochromatic

#081628 #11325C #1B4E8F #256AC2 #4889DC

Accessibility & contrast

On white

8.29

#1B4E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1B4E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E8F

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E8F	#FFFFFF	#000000	##FFFFFF
##1B4E8F	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C5491

Deuteranopia (green-blind)

#14498E

Tritanopia (blue-blind)

#005D67

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b4e8f;
/* rgb */ color: rgb(27, 78, 143);
/* oklch */ color: oklch(42.7% 0.120 256.3);

Tailwind

colors: {
  custom: {
    50: '#6b7fb0',
    500: '#1b4e8f',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e8f;
$custom-light: #6b7fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e8f",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 143
  },
  "hsl": {
    "h": 213.621,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.42693,
    "c": 0.12025,
    "h": 256.3
  },
  "luminance": 0.07665
}

Semantic roles & 50–950 ramp

primary

#1B4E8F

secondary

#BE8A48

accent

#9E3DEB

background

#F6F7FA

surface

#ECEEF5

border

#C7C9CF

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1B4E8F

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

Preview Lab → · Contrast checker → · Palette generator →