#2B6CBD
Closest named color: Mid Blue (#276AB3). oklch(53.2% 0.143 255.7), rgb(43, 108, 189).
Aa
White text reads best on this color (5.27:1).
About this color
#2B6CBD is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.143 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.017 away. White text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.98:1 |
| White text | 5.27:1 |
Values
| HEX | #2B6CBD |
| RGB | rgb(43, 108, 189) |
| HSL | hsl(213, 63%, 45%) |
| OKLCH | oklch(53.2% 0.143 255.7) |
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 #2B6CBD | 5.27:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #2B6CBD | 3.98:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #2B6CBD text on white | 5.27:1 | AA | Lc 75.8 | Fine for body text |
| #2B6CBD text on black | 3.98:1 | AA large text | Lc -25.9 | Dividers and decoration only |
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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADBF1
oklch(88.6% 0.035 254.9)
-
Step 300
300
#A6C3EA
oklch(80.9% 0.064 255.9)
-
Step 400
400
#75A3E0
oklch(70.7% 0.103 255.8)
-
Step 500
500
#508BD7
oklch(63.1% 0.131 255.5)
-
Step 600
600 (this color)
#2B6CBD
oklch(53.2% 0.143 255.7)
-
Step 700
700
#2560AA
oklch(49.1% 0.133 255.9)
-
Step 800
800
#204F8A
oklch(42.7% 0.11 255.7)
-
Step 900
900
#20426E
oklch(37.7% 0.086 255.8)
-
Step 950
950
#132740
oklch(27% 0.054 254.9)
#2B6CBD 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) | #4473C0 | 0.032 |
| Deuteranopia (no green cones) | #2966BB | 0.017 |
| Tritanopia (no blue cones) | #007F8B | 0.109 |
| Achromatopsia (no color) | #6C6C6C | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B6CBD
#2B6CBD
oklch(53.2% 0.143 255.7)
- #916200
#916200
oklch(53.3% 0.112 76.1)
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 #2B6CBD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.017
- French Blue #436BAD ΔE 0.031
- Windows Blue #3778BF ΔE 0.036
- Flat Blue #3C73A8 ΔE 0.044
- Nice Blue #107AB0 ΔE 0.048
- Muted Blue #3B719F ΔE 0.054
- Ocean Blue #03719C ΔE 0.061
- Royal Blue #4169E1 ΔE 0.061
Use #2B6CBD 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.