#2B87BD
Closest named color: Cool Blue (#4984B8). oklch(59.5% 0.117 239.5), rgb(43, 135, 189).
Aa
Black text reads best on this color (5.30:1).
About this color
#2B87BD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.117 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.022 away. Black text reads best on it, at 5.30:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.30:1 |
| White text | 3.95:1 |
Values
| HEX | #2B87BD |
| RGB | rgb(43, 135, 189) |
| HSL | hsl(202, 63%, 45%) |
| OKLCH | oklch(59.5% 0.117 239.5) |
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 #2B87BD | 3.95:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #2B87BD | 5.30:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #2B87BD text on white | 3.95:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #2B87BD text on black | 5.30:1 | AA | Lc -35.1 | 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 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
#9FC6E2
oklch(80.8% 0.057 239.6)
-
Step 400
400
#68A9D4
oklch(70.8% 0.092 238.9)
-
Step 500
500 (this color)
#2B87BD
oklch(59.5% 0.117 239.5)
-
Step 600
600
#007BB5
oklch(55.6% 0.127 239.8)
-
Step 700
700
#006899
oklch(49.2% 0.111 239.3)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#0F4666
oklch(37.6% 0.077 239.9)
-
Step 950
950
#0C293C
oklch(26.9% 0.049 240.9)
#2B87BD 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) | #6E87BF | 0.062 |
| Deuteranopia (no green cones) | #5A7ABC | 0.049 |
| Tritanopia (no blue cones) | #00959A | 0.079 |
| Achromatopsia (no color) | #808080 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B87BD
#2B87BD
oklch(59.5% 0.117 239.5)
- #B16C2C
#B16C2C
oklch(59.5% 0.117 59.8)
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 #2B87BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.022
- Steel Blue #4682B4 ΔE 0.023
- Blue NCS #118AB2 ΔE 0.024
- Water Blue #0E87CC ΔE 0.025
- Off Blue #5684AE ΔE 0.038
- Dusty Blue #5A86AD ΔE 0.043
- Windows Blue #3778BF ΔE 0.043
- Nice Blue #107AB0 ΔE 0.044
Use #2B87BD 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.