#274B81#274B81

#274B81 is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.5% C 0.100 H 258.4°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#274B81
RGB	rgb(39, 75, 129)
HSL	hsl(216, 54%, 33%)
HSV	hsv(216, 70%, 51%)
CMYK	cmyk(69.8%, 41.9%, 0%, 49.4%)
CIE-LAB	lab(31.92, 6.14, -34.28)
CIE-LCH	lch(31.92, 34.83, 280.15°)
OKLab	oklab(41.48% -0.0201 -0.0977)
OKLCH	oklch(41.48% 0.1 258.4)
XYZ	xyz(7.3138, 7.0477, 21.7395)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274B81 #815D27

analogous

#277881 #274B81 #302781

triadic

#274B81 #81274B #4B8127

tetradic

#274B81 #812778 #815D27 #278130

square

#274B81 #812778 #815D27 #278130

split-complementary

#274B81 #813027 #788127

monochromatic

#0B1423 #193052 #274B81 #3566B0 #5685CC

Accessibility & contrast

On white

8.72

#274B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#274B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274B81

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274B81	#FFFFFF	#000000	##FFFFFF
##274B81	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#325083

Deuteranopia (green-blind)

#244780

Tritanopia (blue-blind)

#00575F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #274b81;
/* rgb */ color: rgb(39, 75, 129);
/* oklch */ color: oklch(41.5% 0.100 258.4);

Tailwind

colors: {
  custom: {
    50: '#6c7ca6',
    500: '#274b81',
    950: '#000000',
  },
}

SCSS

$custom: #274b81;
$custom-light: #6c7ca6;
$custom-dark: #000000;

JSON

{
  "hex": "#274b81",
  "rgb": {
    "r": 39,
    "g": 75,
    "b": 129
  },
  "hsl": {
    "h": 216,
    "s": 53.571,
    "l": 32.941
  },
  "oklch": {
    "l": 0.41479,
    "c": 0.09976,
    "h": 258.4
  },
  "luminance": 0.07048
}

Semantic roles & 50–950 ramp

primary

#274B81

secondary

#B18B53

accent

#A34BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #274B81

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

Preview Lab → · Contrast checker → · Palette generator →