#2B85AB
Closest named color: Blue NCS (#118AB2). oklch(58.1% 0.101 230.5), rgb(43, 133, 171).
Aa
Black text reads best on this color (5.04:1).
About this color
#2B85AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.101 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.016 away. Black text reads best on it, at 5.04:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.04:1 |
| White text | 4.16:1 |
Values
| HEX | #2B85AB |
| RGB | rgb(43, 133, 171) |
| HSL | hsl(198, 60%, 42%) |
| OKLCH | oklch(58.1% 0.101 230.5) |
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 #2B85AB | 4.16:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #2B85AB | 5.04:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #2B85AB text on white | 4.16:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #2B85AB text on black | 5.04:1 | AA | Lc -33.3 | 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
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300
#A4C7D9
oklch(81% 0.045 230.4)
-
Step 400
400
#70A9C6
oklch(70.6% 0.073 231.3)
-
Step 500
500
#4694B7
oklch(63.2% 0.093 230)
-
Step 600
600 (this color)
#2B85AB
oklch(58.1% 0.101 230.5)
-
Step 700
700
#106A8C
oklch(49.2% 0.094 230.4)
-
Step 800
800
#135671
oklch(42.6% 0.077 230.4)
-
Step 900
900
#19475C
oklch(37.7% 0.061 231.4)
-
Step 950
950
#102A36
oklch(27.1% 0.039 230.5)
#2B85AB 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) | #7283AD | 0.069 |
| Deuteranopia (no green cones) | #6077AA | 0.058 |
| Tritanopia (no blue cones) | #008F92 | 0.058 |
| Achromatopsia (no color) | #7C7C7C | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B85AB
#2B85AB
oklch(58.1% 0.101 230.5)
- #AA6841
#AA6841
oklch(58.2% 0.101 50.3)
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 #2B85AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.016
- Steel Blue #4682B4 ΔE 0.027
- Teal Blue #01889F ΔE 0.027
- Cool Blue #4984B8 ΔE 0.032
- Cerulean #457B9D ΔE 0.033
- Off Blue #5684AE ΔE 0.036
- Stormy Blue #507B9C ΔE 0.039
- Nice Blue #107AB0 ΔE 0.039
Use #2B85AB 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.