#2B82A8
Closest named color: Blue NCS (#118AB2). oklch(57.2% 0.099 231.3), rgb(43, 130, 168).
Aa
Black text reads best on this color (4.86:1).
About this color
#2B82A8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.099 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.024 away. Black text reads best on it, at 4.86:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 4.86:1 |
| White text | 4.31:1 |
Values
| HEX | #2B82A8 |
| RGB | rgb(43, 130, 168) |
| HSL | hsl(198, 59%, 41%) |
| OKLCH | oklch(57.2% 0.099 231.3) |
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 #2B82A8 | 4.31:1 | AA large text | Lc -75.1 | Fine for body text |
| Black text on #2B82A8 | 4.86:1 | AA | Lc 34.5 | Non-text elements, placeholder text |
| #2B82A8 text on white | 4.31:1 | AA large text | Lc 69.6 | Content text, not long reading |
| #2B82A8 text on black | 4.86:1 | AA | Lc -32.1 | 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
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADDE7
oklch(88.6% 0.025 230.5)
-
Step 300
300
#A4C6D9
oklch(80.8% 0.045 232.5)
-
Step 400
400
#72A9C5
oklch(70.7% 0.071 231.2)
-
Step 500
500
#4893B7
oklch(63% 0.092 231.6)
-
Step 600
600 (this color)
#2B82A8
oklch(57.2% 0.099 231.3)
-
Step 700
700
#15698B
oklch(49% 0.092 231.3)
-
Step 800
800
#165671
oklch(42.7% 0.076 231)
-
Step 900
900
#1B475C
oklch(37.7% 0.06 232.2)
-
Step 950
950
#112A36
oklch(27.1% 0.038 231.3)
#2B82A8 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) | #6F80AA | 0.067 |
| Deuteranopia (no green cones) | #5E74A7 | 0.057 |
| Tritanopia (no blue cones) | #008C8F | 0.058 |
| Achromatopsia (no color) | #7A7A7A | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B82A8
#2B82A8
oklch(57.2% 0.099 231.3)
- #A6663E
#A6663E
oklch(57.2% 0.099 51.6)
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 #2B82A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.024
- Cerulean #457B9D ΔE 0.027
- Teal Blue #01889F ΔE 0.029
- Steel Blue #4682B4 ΔE 0.029
- Nice Blue #107AB0 ΔE 0.033
- Stormy Blue #507B9C ΔE 0.034
- Cool Blue #4984B8 ΔE 0.036
- Off Blue #5684AE ΔE 0.039
Use #2B82A8 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.