#2B5FC1
Closest named color: Mid Blue (#276AB3). oklch(50.7% 0.164 261.6), rgb(43, 95, 193).
Aa
White text reads best on this color (5.98:1).
About this color
#2B5FC1 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.164 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.039 away. White text reads best on it, at 5.98:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.50:1 |
| White text | 5.98:1 |
Values
| HEX | #2B5FC1 |
| RGB | rgb(43, 95, 193) |
| HSL | hsl(219, 64%, 46%) |
| OKLCH | oklch(50.7% 0.164 261.6) |
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 #2B5FC1 | 5.98:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #2B5FC1 | 3.50:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #2B5FC1 text on white | 5.98:1 | AA | Lc 79.4 | Fine for body text |
| #2B5FC1 text on black | 3.50:1 | AA large text | Lc -22.4 | 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 700.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C9DAF7
oklch(88.5% 0.044 261.2)
-
Step 300
300
#A4C1F5
oklch(80.8% 0.081 261.9)
-
Step 400
400
#74A0EF
oklch(70.7% 0.126 261.5)
-
Step 500
500
#4F86EA
oklch(63.1% 0.162 261.3)
-
Step 600
600
#346DD8
oklch(55.6% 0.175 261.5)
-
Step 700
700 (this color)
#2B5FC1
oklch(50.7% 0.164 261.6)
-
Step 800
800
#214A98
oklch(42.7% 0.136 261.7)
-
Step 900
900
#203F79
oklch(37.8% 0.106 261.6)
-
Step 950
950
#132547
oklch(26.9% 0.068 261.9)
#2B5FC1 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) | #216BC5 | 0.031 |
| Deuteranopia (no green cones) | #005DBF | 0.022 |
| Tritanopia (no blue cones) | #007787 | 0.128 |
| Achromatopsia (no color) | #636363 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B5FC1
#2B5FC1
oklch(50.7% 0.164 261.6)
- #835E00
#835E00
oklch(50.7% 0.105 81.7)
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 #2B5FC1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.039
- Warm Blue #4B57DB ΔE 0.055
- French Blue #436BAD ΔE 0.055
- Royal Blue #4169E1 ΔE 0.060
- Iris #6258C4 ΔE 0.065
- Azul #1D5DEC ΔE 0.067
- Windows Blue #3778BF ΔE 0.071
- Blue Blue #2242C7 ΔE 0.072
Use #2B5FC1 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.