Cobalt (survey)#1E488F

#1E488F is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.4% C 0.127 H 260.3°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Cobalt (survey) — editorial page

Color values

HEX	#1E488F
RGB	rgb(30, 72, 143)
HSL	hsl(218, 65%, 34%)
HSV	hsv(218, 79%, 56%)
CMYK	cmyk(79%, 49.7%, 0%, 43.9%)
CIE-LAB	lab(31.56, 12.35, -43.49)
CIE-LCH	lch(31.56, 45.21, 285.86°)
OKLab	oklab(41.4% -0.0214 -0.125)
OKLCH	oklch(41.4% 0.127 260.3)
XYZ	xyz(7.8089, 6.8930, 26.9002)
Luminance	0.0689 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E488F #8F651E

analogous

#1E818F #1E488F #2D1E8F

triadic

#1E488F #8F1E48 #488F1E

tetradic

#1E488F #8F1E81 #8F651E #1E8F2D

square

#1E488F #8F1E81 #8F651E #1E8F2D

split-complementary

#1E488F #8F2D1E #818F1E

monochromatic

#09152A #132F5C #1E488F #2961C2 #4E82DA

Accessibility & contrast

On white

8.83

#1E488F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1E488F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E488F

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E488F	#FFFFFF	#000000	##FFFFFF
##1E488F	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F5092

Deuteranopia (green-blind)

#00458E

Tritanopia (blue-blind)

#005964

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1e488f;
/* rgb */ color: rgb(30, 72, 143);
/* oklch */ color: oklch(41.4% 0.127 260.3);

Tailwind

colors: {
  custom: {
    50: '#6c7ab0',
    500: '#1e488f',
    950: '#000000',
  },
}

SCSS

$custom: #1e488f;
$custom-light: #6c7ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#1e488f",
  "rgb": {
    "r": 30,
    "g": 72,
    "b": 143
  },
  "hsl": {
    "h": 217.699,
    "s": 65.318,
    "l": 33.922
  },
  "oklch": {
    "l": 0.41401,
    "c": 0.12681,
    "h": 260.3
  },
  "luminance": 0.06894
}

Semantic roles & 50–950 ramp

primary

#1E488F

secondary

#BC934C

accent

#AA40E8

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #1E488F

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

Preview Lab → · Contrast checker → · Palette generator →