#1B457D#1B457D

#1B457D is a dark, moderate cyan. Relative luminance 0.060; OKLCH L 39.3% C 0.106 H 256.7°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#1B457D
RGB	rgb(27, 69, 125)
HSL	hsl(214, 64%, 30%)
HSV	hsv(214, 78%, 49%)
CMYK	cmyk(78.4%, 44.8%, 0%, 51%)
CIE-LAB	lab(29.33, 6.73, -35.94)
CIE-LCH	lch(29.33, 36.57, 280.61°)
OKLab	oklab(39.27% -0.0242 -0.1029)
OKLCH	oklch(39.27% 0.106 256.7)
XYZ	xyz(6.2804, 5.9692, 20.2192)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B457D #7D531B

analogous

#1B767D #1B457D #221B7D

triadic

#1B457D #7D1B45 #457D1B

tetradic

#1B457D #7D1B76 #7D531B #1B7D22

square

#1B457D #7D1B76 #7D531B #1B7D22

split-complementary

#1B457D #7D221B #767D1B

monochromatic

#050E19 #10294B #1B457D #2661AF #3D7ED5

Accessibility & contrast

On white

9.57

#1B457D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1B457D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B457D

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B457D	#FFFFFF	#000000	##FFFFFF
##1B457D	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294A7F

Deuteranopia (green-blind)

#17417C

Tritanopia (blue-blind)

#00525B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1b457d;
/* rgb */ color: rgb(27, 69, 125);
/* oklch */ color: oklch(39.3% 0.106 256.7);

Tailwind

colors: {
  custom: {
    50: '#6778a3',
    500: '#1b457d',
    950: '#000000',
  },
}

SCSS

$custom: #1b457d;
$custom-light: #6778a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b457d",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 125
  },
  "hsl": {
    "h": 214.286,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.39265,
    "c": 0.10569,
    "h": 256.7
  },
  "luminance": 0.0597
}

Semantic roles & 50–950 ramp

primary

#1B457D

secondary

#B18243

accent

#A040E7

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1B457D

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

Preview Lab → · Contrast checker → · Palette generator →