#1B447E#1B447E

#1B447E is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.1% C 0.108 H 257.7°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B447E
RGB	rgb(27, 68, 126)
HSL	hsl(215, 65%, 30%)
HSV	hsv(215, 79%, 49%)
CMYK	cmyk(78.6%, 46%, 0%, 50.6%)
CIE-LAB	lab(29.09, 7.82, -36.96)
CIE-LCH	lch(29.09, 37.78, 281.95°)
OKLab	oklab(39.1% -0.0231 -0.1059)
OKLCH	oklch(39.1% 0.108 257.7)
XYZ	xyz(6.2836, 5.8729, 20.5370)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B447E #7E551B

analogous

#1B757E #1B447E #241B7E

triadic

#1B447E #7E1B44 #447E1B

tetradic

#1B447E #7E1B75 #7E551B #1B7E24

square

#1B447E #7E1B75 #7E551B #1B7E24

split-complementary

#1B447E #7E241B #757E1B

monochromatic

#050E19 #10294C #1B447E #265FB0 #3E7DD6

Accessibility & contrast

On white

9.66

#1B447E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#1B447E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B447E

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B447E	#FFFFFF	#000000	##FFFFFF
##1B447E	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264980

Deuteranopia (green-blind)

#12407D

Tritanopia (blue-blind)

#00525A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1b447e;
/* rgb */ color: rgb(27, 68, 126);
/* oklch */ color: oklch(39.1% 0.108 257.7);

Tailwind

colors: {
  custom: {
    50: '#6777a4',
    500: '#1b447e',
    950: '#000000',
  },
}

SCSS

$custom: #1b447e;
$custom-light: #6777a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b447e",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 126
  },
  "hsl": {
    "h": 215.152,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.39096,
    "c": 0.10837,
    "h": 257.7
  },
  "luminance": 0.05874
}

Semantic roles & 50–950 ramp

primary

#1B447E

secondary

#B28443

accent

#A240E8

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1B447E

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

Preview Lab → · Contrast checker → · Palette generator →