#2782AB
Closest named color: Blue NCS (#118AB2). oklch(57.3% 0.104 232.6), rgb(39, 130, 171).
Aa
Black text reads best on this color (4.86:1).
About this color
#2782AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.104 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.023 away. Black text reads best on it, at 4.86:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 4.86:1 |
| White text | 4.31:1 |
Values
| HEX | #2782AB |
| RGB | rgb(39, 130, 171) |
| HSL | hsl(199, 63%, 41%) |
| OKLCH | oklch(57.3% 0.104 232.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #2782AB | 4.31:1 | AA large text | Lc -75.0 | Content text, not long reading |
| Black text on #2782AB | 4.86:1 | AA | Lc 34.6 | Non-text elements, placeholder text |
| #2782AB text on white | 4.31:1 | AA large text | Lc 69.5 | Content text, not long reading |
| #2782AB text on black | 4.86:1 | AA | Lc -32.2 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A3C6DA
oklch(80.8% 0.047 233.2)
-
Step 400
400
#70A9C8
oklch(70.7% 0.075 233.1)
-
Step 500
500
#4693BA
oklch(63.1% 0.096 233.2)
-
Step 600
600 (this color)
#2782AB
oklch(57.3% 0.104 232.6)
-
Step 700
700
#0F698E
oklch(49.1% 0.096 232.8)
-
Step 800
800
#135673
oklch(42.7% 0.079 232.3)
-
Step 900
900
#19475D
oklch(37.7% 0.062 232.6)
-
Step 950
950
#102A36
oklch(27.1% 0.039 230.5)
#2782AB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #6E81AD | 0.068 |
| Deuteranopia (no green cones) | #5C74AA | 0.057 |
| Tritanopia (no blue cones) | #008D90 | 0.062 |
| Achromatopsia (no color) | #7A7A7A | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2782AB
#2782AB
oklch(57.3% 0.104 232.6)
- #A8653A
#A8653A
oklch(57.3% 0.104 51.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #2782AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.023
- Steel Blue #4682B4 ΔE 0.028
- Nice Blue #107AB0 ΔE 0.030
- Cerulean #457B9D ΔE 0.030
- Teal Blue #01889F ΔE 0.031
- Cool Blue #4984B8 ΔE 0.035
- Stormy Blue #507B9C ΔE 0.037
- Off Blue #5684AE ΔE 0.040
Use #2782AB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.