#2B87BA
Closest named color: Blue NCS (#118AB2). oklch(59.4% 0.114 237.9), rgb(43, 135, 186).
Aa
Black text reads best on this color (5.27:1).
About this color
#2B87BA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.114 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.020 away. Black text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.27:1 |
| White text | 3.97:1 |
Values
| HEX | #2B87BA |
| RGB | rgb(43, 135, 186) |
| HSL | hsl(201, 62%, 45%) |
| OKLCH | oklch(59.4% 0.114 237.9) |
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 #2B87BA | 3.97:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #2B87BA | 5.27:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #2B87BA text on white | 3.97:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #2B87BA text on black | 5.27:1 | AA | Lc -34.9 | 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
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C7DDEC
oklch(88.6% 0.031 237.6)
-
Step 300
300
#A0C7E1
oklch(81% 0.055 237.6)
-
Step 400
400
#69A9D2
oklch(70.8% 0.089 238)
-
Step 500
500 (this color)
#2B87BA
oklch(59.4% 0.114 237.9)
-
Step 600
600
#007CB2
oklch(55.6% 0.123 237.7)
-
Step 700
700
#006897
oklch(49.1% 0.109 238.1)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#104764
oklch(37.8% 0.074 237.1)
-
Step 950
950
#0C293B
oklch(26.9% 0.048 239.4)
#2B87BA 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) | #6F87BC | 0.064 |
| Deuteranopia (no green cones) | #5B7AB9 | 0.050 |
| Tritanopia (no blue cones) | #009499 | 0.074 |
| Achromatopsia (no color) | #7F7F7F | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B87BA
#2B87BA
oklch(59.4% 0.114 237.9)
- #B06B31
#B06B31
oklch(59.3% 0.114 57.8)
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 #2B87BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.020
- Steel Blue #4682B4 ΔE 0.022
- Cool Blue #4984B8 ΔE 0.022
- Water Blue #0E87CC ΔE 0.029
- Off Blue #5684AE ΔE 0.036
- Dusty Blue #5A86AD ΔE 0.041
- Nice Blue #107AB0 ΔE 0.042
- Windows Blue #3778BF ΔE 0.045
Use #2B87BA 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.