#2B8ABA
Closest named color: Blue NCS (#118AB2). oklch(60.1% 0.112 235.6), rgb(43, 138, 186).
Aa
Black text reads best on this color (5.44:1).
About this color
#2B8ABA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.112 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.017 away. Black text reads best on it, at 5.44:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #2B8ABA |
| RGB | rgb(43, 138, 186) |
| HSL | hsl(200, 62%, 45%) |
| OKLCH | oklch(60.1% 0.112 235.6) |
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 #2B8ABA | 3.85:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #2B8ABA | 5.44:1 | AA | Lc 38.4 | Non-text elements, placeholder text |
| #2B8ABA text on white | 3.85:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #2B8ABA text on black | 5.44:1 | AA | Lc -36.0 | 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 500.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C7DDEB
oklch(88.6% 0.03 235.7)
-
Step 300
300
#9FC7E0
oklch(80.9% 0.055 235.8)
-
Step 400
400
#67A9D0
oklch(70.6% 0.088 235.9)
-
Step 500
500 (this color)
#2B8ABA
oklch(60.1% 0.112 235.6)
-
Step 600
600
#007DAF
oklch(55.7% 0.119 235.4)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800
#00567A
oklch(42.8% 0.091 235.4)
-
Step 900
900
#0E4763
oklch(37.7% 0.073 235.7)
-
Step 950
950
#0B2A3A
oklch(27.1% 0.047 234.9)
#2B8ABA 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) | #7389BC | 0.067 |
| Deuteranopia (no green cones) | #5F7CB9 | 0.055 |
| Tritanopia (no blue cones) | #00969A | 0.071 |
| Achromatopsia (no color) | #828282 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B8ABA
#2B8ABA
oklch(60.1% 0.112 235.6)
- #B36D38
#B36D38
oklch(60.1% 0.112 55.6)
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 #2B8ABA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.017
- Cool Blue #4984B8 ΔE 0.025
- Steel Blue #4682B4 ΔE 0.026
- Water Blue #0E87CC ΔE 0.032
- Off Blue #5684AE ΔE 0.036
- Dusty Blue #5A86AD ΔE 0.040
- Teal Blue #01889F ΔE 0.046
- Nice Blue #107AB0 ΔE 0.050
Use #2B8ABA 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.