#2881AB
Closest named color: Blue NCS (#118AB2). oklch(57.1% 0.104 233.7), rgb(40, 129, 171).
Aa
Black text reads best on this color (4.81:1).
About this color
#2881AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.104 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.025 away. Black text reads best on it, at 4.81:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 4.81:1 |
| White text | 4.35:1 |
Values
| HEX | #2881AB |
| RGB | rgb(40, 129, 171) |
| HSL | hsl(199, 62%, 41%) |
| OKLCH | oklch(57.1% 0.104 233.7) |
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 #2881AB | 4.35:1 | AA large text | Lc -75.3 | Fine for body text |
| Black text on #2881AB | 4.81:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #2881AB text on white | 4.35:1 | AA large text | Lc 69.8 | Content text, not long reading |
| #2881AB text on black | 4.81:1 | AA | Lc -31.8 | 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
#E2ECF2
oklch(93.7% 0.013 233.7)
-
Step 200
200
#C9DCE8
oklch(88.4% 0.026 235.4)
-
Step 300
300
#A4C6DA
oklch(80.8% 0.046 233.9)
-
Step 400
400
#71A9C8
oklch(70.8% 0.074 233.5)
-
Step 500
500
#4793BA
oklch(63.1% 0.095 233.4)
-
Step 600
600 (this color)
#2881AB
oklch(57.1% 0.104 233.7)
-
Step 700
700
#12698F
oklch(49.2% 0.097 233.8)
-
Step 800
800
#145674
oklch(42.8% 0.08 233.4)
-
Step 900
900
#1A475D
oklch(37.7% 0.061 233)
-
Step 950
950
#112A37
oklch(27.2% 0.039 233.4)
#2881AB 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) | #6C80AD | 0.065 |
| Deuteranopia (no green cones) | #5B73AA | 0.056 |
| Tritanopia (no blue cones) | #008C8F | 0.064 |
| Achromatopsia (no color) | #797979 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2881AB
#2881AB
oklch(57.1% 0.104 233.7)
- #A76538
#A76538
oklch(57.1% 0.104 53.3)
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 #2881AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.025
- Nice Blue #107AB0 ΔE 0.027
- Steel Blue #4682B4 ΔE 0.028
- Cerulean #457B9D ΔE 0.029
- Teal Blue #01889F ΔE 0.034
- Cool Blue #4984B8 ΔE 0.035
- Stormy Blue #507B9C ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.040
Use #2881AB 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.