#1B4D88#1B4D88

#1B4D88 is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 42.0% C 0.112 H 254.9°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#1B4D88
RGB	rgb(27, 77, 136)
HSL	hsl(212, 67%, 32%)
HSV	hsv(212, 80%, 53%)
CMYK	cmyk(80.1%, 43.4%, 0%, 46.7%)
CIE-LAB	lab(32.52, 5.78, -37.67)
CIE-LCH	lch(32.52, 38.11, 278.73°)
OKLab	oklab(41.96% -0.0291 -0.1078)
OKLCH	oklch(41.96% 0.112 254.9)
XYZ	xyz(7.5482, 7.3174, 24.3024)
Luminance	0.0732 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4D88 #88561B

analogous

#1B8488 #1B4D88 #201B88

triadic

#1B4D88 #881B4D #4D881B

tetradic

#1B4D88 #881B84 #88561B #1B8820

square

#1B4D88 #881B84 #88561B #1B8820

split-complementary

#1B4D88 #88201B #84881B

monochromatic

#071322 #113055 #1B4D88 #256ABB #4489DA

Accessibility & contrast

On white

8.52

#1B4D88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#1B4D88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D88

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4D88	#FFFFFF	#000000	##FFFFFF
##1B4D88	1.00	8.52	2.46	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#30528A

Deuteranopia (green-blind)

#1C4887

Tritanopia (blue-blind)

#005B64

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b4d88;
/* rgb */ color: rgb(27, 77, 136);
/* oklch */ color: oklch(42.0% 0.112 254.9);

Tailwind

colors: {
  custom: {
    50: '#697eab',
    500: '#1b4d88',
    950: '#000000',
  },
}

SCSS

$custom: #1b4d88;
$custom-light: #697eab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4d88",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 136
  },
  "hsl": {
    "h": 212.477,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.41963,
    "c": 0.11165,
    "h": 254.9
  },
  "luminance": 0.07318
}

Semantic roles & 50–950 ramp

primary

#1B4D88

secondary

#BB8444

accent

#9B3EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1B4D88

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

Preview Lab → · Contrast checker → · Palette generator →