#1D4E8F#1D4E8F

#1D4E8F is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.8% C 0.120 H 256.8°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#1D4E8F
RGB	rgb(29, 78, 143)
HSL	hsl(214, 66%, 34%)
HSV	hsv(214, 80%, 56%)
CMYK	cmyk(79.7%, 45.5%, 0%, 43.9%)
CIE-LAB	lab(33.33, 8.17, -40.65)
CIE-LCH	lch(33.33, 41.46, 281.37°)
OKLab	oklab(42.76% -0.0273 -0.1165)
OKLCH	oklch(42.76% 0.12 256.8)
XYZ	xyz(8.1872, 7.6922, 27.0345)
Luminance	0.0769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4E8F #8F5E1D

analogous

#1D878F #1D4E8F #251D8F

triadic

#1D4E8F #8F1D4E #4E8F1D

tetradic

#1D4E8F #8F1D87 #8F5E1D #1D8F25

square

#1D4E8F #8F1D87 #8F5E1D #1D8F25

split-complementary

#1D4E8F #8F251D #878F1D

monochromatic

#081629 #13325C #1D4E8F #276AC2 #4C89DB

Accessibility & contrast

On white

8.27

#1D4E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1D4E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4E8F

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4E8F	#FFFFFF	#000000	##FFFFFF
##1D4E8F	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5491

Deuteranopia (green-blind)

#154A8E

Tritanopia (blue-blind)

#005D67

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d4e8f;
/* rgb */ color: rgb(29, 78, 143);
/* oklch */ color: oklch(42.8% 0.120 256.8);

Tailwind

colors: {
  custom: {
    50: '#6b7fb0',
    500: '#1d4e8f',
    950: '#000000',
  },
}

SCSS

$custom: #1d4e8f;
$custom-light: #6b7fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4e8f",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 143
  },
  "hsl": {
    "h": 214.211,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.42757,
    "c": 0.11965,
    "h": 256.8
  },
  "luminance": 0.07693
}

Semantic roles & 50–950 ramp

primary

#1D4E8F

secondary

#BD8C4B

accent

#A03FE9

background

#F6F7FA

surface

#ECEEF5

border

#C7C9CF

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1D4E8F

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

Preview Lab → · Contrast checker → · Palette generator →