#1B457C#1B457C

#1B457C is a dark, moderate cyan. Relative luminance 0.059; OKLCH L 39.2% C 0.104 H 256.4°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#1B457C
RGB	rgb(27, 69, 124)
HSL	hsl(214, 64%, 30%)
HSV	hsv(214, 78%, 49%)
CMYK	cmyk(78.2%, 44.4%, 0%, 51.4%)
CIE-LAB	lab(29.27, 6.33, -35.42)
CIE-LCH	lch(29.27, 35.98, 280.13°)
OKLab	oklab(39.19% -0.0244 -0.1013)
OKLCH	oklch(39.19% 0.104 256.4)
XYZ	xyz(6.2169, 5.9438, 19.8845)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B457C #7C521B

analogous

#1B757C #1B457C #221B7C

triadic

#1B457C #7C1B45 #457C1B

tetradic

#1B457C #7C1B75 #7C521B #1B7C22

square

#1B457C #7C1B75 #7C521B #1B7C22

split-complementary

#1B457C #7C221B #757C1B

monochromatic

#050E19 #10294A #1B457C #2661AE #3D7FD5

Accessibility & contrast

On white

9.59

#1B457C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1B457C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B457C

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B457C	#FFFFFF	#000000	##FFFFFF
##1B457C	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4A7E

Deuteranopia (green-blind)

#18417B

Tritanopia (blue-blind)

#00525A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1b457c;
/* rgb */ color: rgb(27, 69, 124);
/* oklch */ color: oklch(39.2% 0.104 256.4);

Tailwind

colors: {
  custom: {
    50: '#6678a2',
    500: '#1b457c',
    950: '#000000',
  },
}

SCSS

$custom: #1b457c;
$custom-light: #6678a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b457c",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 124
  },
  "hsl": {
    "h": 214.021,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.39194,
    "c": 0.10425,
    "h": 256.4
  },
  "luminance": 0.05944
}

Semantic roles & 50–950 ramp

primary

#1B457C

secondary

#B08143

accent

#9F41E7

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1B457C

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

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